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Manual IBM DS5020

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  • IBM DS5020 - page 1

    IB M S ys tem S to rage DS5 02 0 Sto rag e Subsyste m In sta ll ati o n , U s e r’ s, a n d M a in t e n an c e G ui d e  ...

  • IBM DS5020 - page 2

    ...

  • IBM DS5020 - page 3

    IB M S yste m Sto rag e D S5 02 0 Sto rage Subsys te m In sta ll ati o n , U s e r’ s, a n d M a in t e n a n ce G ui d e  ...

  • IBM DS5020 - page 4

    Note: Before using this information and the product it supports, be sure to read the general information in “Safety” on page xiii and “Notices” on page 197. First Edition (July 2009) © Copyright International Business Machines Corporation 2009. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP S ...

  • IBM DS5020 - page 5

    Contents Figures ............................ i x T ables ............................ x i Safety ............................ xiii About this document ...................... x i x Who should read this document .................. x i x How this document is organized .................. x i x DS5020 and DS4000-family storage subsystem installation ta ...

  • IBM DS5020 - page 6

    Power and site wiring requirements ............... 2 3 Heat output, airflow , and cooling ................. 2 4 Chapter 2. Installing the storage subsystem ............. 2 7 Installation overview ....................... 2 7 Handling static-sensitive devices .................. 2 9 Preparing for installation ..................... 2 9 T ools and hardw ...

  • IBM DS5020 - page 7

    Host-agent (in-band) management method ............. 8 0 Direct (out-of-band) management method ............. 8 1 Connecting hosts to the DS5020 using Fibre Channel host ports ..... 8 2 Fibre Channel and iSCSI connections ............... 8 4 Fibre Channel host loop configurations ............... 8 5 Redundant Fibre Channel host loops .............. ...

  • IBM DS5020 - page 8

    Parts listing .......................... 1 6 0 Appendix A. Records ..................... 1 6 3 Identification numbers ...................... 1 6 3 Storage subsystem and controller information record .......... 1 6 4 Sample information record ................... 1 6 5 Installed device records ..................... 1 6 6 Appendix B. Rack mounting tem ...

  • IBM DS5020 - page 9

    Index ............................ 2 1 3 Contents vii ...

  • IBM DS5020 - page 10

    viii IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 11

    Figures 1. DS5020 hot-swap drive bays ........................... 7 2. Back view; controllers with two standard Fibre Channel host expansion channels ....... 1 0 3. Back view; controllers with two standard and two optional Fibre Channel host expansion channels 10 4. Back view; controllers with two standard Fibre Channel host expansion channels and ...

  • IBM DS5020 - page 12

    51. Ethernet and serial port locations on DS5020 .................... 7 9 52. Host-agent (in-band) managed storage subsystems .................. 8 0 53. Direct (out-of-band) managed storage subsystems .................. 8 2 54. Location of host cables on RAID controllers on the DS5020 ............... 8 3 55. Cabling diagram for two redundant host c ...

  • IBM DS5020 - page 13

    T ables 1. Where to find DS5020 and DS4000-family installation and configuration procedures ...... x x 2. DS5020 weights ............................... 2 0 3. DS5020 component weights ........................... 2 0 4. DS5020 shipping carton dimensions ........................ 2 0 5. T emperature and humidity requirements for storage subsystem whe ...

  • IBM DS5020 - page 14

    xii IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 15

    Safety The caution and danger statements that this document contains can be referenced in the multilingual IBM ® Safety Information document that is provided with your IBM System Storage ™ DS5020 Storage Subsystem. Each caution and danger statement is numbered for easy reference to the corresponding statements in the translated document. v Dange ...

  • IBM DS5020 - page 16

    Statement 1: DANGER Electrical current from power , telephone, and communication cables is hazardous. T o avoid a shock hazard: v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. v Connect all power cords to a properly wired and grounded electrical outlet. v ...

  • IBM DS5020 - page 17

    Statement 2: CAUTION: When replacing the lithium battery , use only an equivalent type battery recommended by the manufacturer . If your system has a module containing a lithium battery , replace it only with the same module type made by the same manufacturer . The battery contains lithium and can explode if not properly used, handled, or disposed ...

  • IBM DS5020 - page 18

    Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Apparell Laser de Calsse 1 À IEC 825-1 1993 CENELEC EN 60 825 Statement 4: ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) CAUTION: Use safe practices when lifting. Statement 5: CAUTION: The power control button on the device and the power switch on the power suppl ...

  • IBM DS5020 - page 19

    Statement 8: CAUTION: Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service tec ...

  • IBM DS5020 - page 20

    Cable W arning: W ARNING: Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a chemical known to the State of California to cause cancer , and birth defects or other reproductive harm. Wash hands after handling. xviii IBM System Storage DS5020 Storage Subsystem: Installation, User ...

  • IBM DS5020 - page 21

    About this document This document provides instructions for installing and customizing the configuration of your IBM System Storage DS5020 storage subsystem. It also provides maintenance procedures and troubleshooting information. Who should read this document This document is intended for system operators and service technicians who have extensive ...

  • IBM DS5020 - page 22

    DS5020 and DS4000-family storage subsystem installation tasks - General overview For educational information about the DS5020 and other IBM System Storage products, go to http://ibmdsseriestraining.com/. T able 1 provides a sequential list of many installation and configuration tasks that are common to most DS5020 and DS4000-family configurations. ...

  • IBM DS5020 - page 23

    T able 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued) Installation task Where to find information or procedures 2 Mount the DS5020 storage subsystem in the rack v DS4800 Storage Subsystem Installation, User ’s, and Maintenance Guide v IBM System Storage Quick Start Guide, Quick reference for the DS ...

  • IBM DS5020 - page 24

    T able 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued) Installation task Where to find information or procedures 4 Route the storage expansion unit Fibre Channel cables v DS4100 Storage Subsystem Installation, User ’s, and Maintenance Guide v DS4200 Express Storage Subsystem Installation, User ’s, ...

  • IBM DS5020 - page 25

    T able 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued) Installation task Where to find information or procedures 8 Zone the fabric switch (SAN-attached only) v DS Storage Manager V ersion 10 Installation and Host Support Guide v DS4000 Storage Manager Copy Services Guide (describes switch zoning for t ...

  • IBM DS5020 - page 26

    T able 1. Where to find DS5020 and DS4000-family installation and configuration procedures (continued) Installation task Where to find information or procedures 16 Configure arrays and logical drives v DS Storage Manager V ersion 10 Installation and Host Support Guide v DS Storage Manager online help 17 Configure host partitions 18 V erify host acc ...

  • IBM DS5020 - page 27

    2. Click the link for your storage subsystem (for example, DS5020 ). 3. When the subsystem support page opens, click the Download tab. 4. Under the Download tab, click Storage Manager , firmware, HBA, tools, support & pubs (including readmes) . 5. Click the applicable tab for the type of readme file that you are looking for: v Firmware v Storag ...

  • IBM DS5020 - page 28

    Premium feature activation Activate a DS5020 or DS4000 premium feature by using the online tool: http://www-912.ibm.com/PremiumFeatures/jsp/keyInput.jsp IBM publications center Find IBM publications: http://www .ibm.com/shop/publications/order/ Support for System p ® servers Find the latest information supporting System p AIX ® and Linux ® serve ...

  • IBM DS5020 - page 29

    Fire suppression systems A fire suppression system is the responsibility of the customer . The customer’s own insurance underwriter , local fire marshal, or a local building inspector , or both, should be consulted in selecting a fire suppression system that provides the correct level of coverage and protection. IBM designs and manufactures equip ...

  • IBM DS5020 - page 30

    xxviii IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 31

    Chapter 1. Introduction This chapter describes the operating specifications, features, and components for the IBM System Storage DS5020 Storage Subsystem (hereafter referred to as DS5020 or storage subsystem ). This chapter also includes an inventory checklist and important information about best practices guidelines and product updates for your DS ...

  • IBM DS5020 - page 32

    storage management, copy service options, and optional advanced disaster recovery functions are available for the DS5020, including FlashCopy ® , V olumeCopy , and Enhanced Remote Mirroring. The DS5020 supports up to four hosts in a redundant direct-attached Fibre Channel configuration. When using Fibre Channel or Ethernet switches, you can redund ...

  • IBM DS5020 - page 33

    Contact your IBM sales representative or reseller for more information about the various DS5020 and options. Operating system support For supported operating systems, see the latest DS Storage Manager host software readme file and the IBM DS4000 and DS5000 series products interoperability matrix at the following Web site for additional host operati ...

  • IBM DS5020 - page 34

    – RAID controllers (2) – AC power supply and fan units (2) – Fiber-optic cables (2) – Battery units (2) – Power cables (2 rack jumper line cords) – Diagnostic wrap plug/coupler (1) – Serial cable adapter (1) – Rack-mounting hardware kit (1), including: - Rails (2) (right and left assembly) - M5 black hex-head slotted screws (12) - M ...

  • IBM DS5020 - page 35

    – Box ID labels (used to label the enclosure IDs on the front of the DS5020) Note: If you ordered additional premium features or entitlements, the premium features activation or entitlement kits might also be shipped inside the box. If an item is missing or damaged, contact your IBM reseller or your IBM marketing representative. A rack mounting t ...

  • IBM DS5020 - page 36

    Note: Do not overload the circuits that power your storage subsystem and storage expansion enclosures. Use additional pairs of ac power distribution units (PDUs) if necessary . Refer to for information about storage subsystem power requirements. Contact your IBM service representative for additional information if needed. v Before any planned syste ...

  • IBM DS5020 - page 37

    Enhanced Disk Drive Modules (E-DDMs) The hot-swap drive bays that are accessible from the front of your storage subsystem are shown in Figure 1. The DS5020 supports both Fibre Channel (FC) and SA T A E-DDMs intermixed in the storage subsystem drive chassis. The DS5020 supports up to sixteen 4 Gbps FC or 3 Gbps SA T A E-DDMs. SA T A E-DDMs have an A ...

  • IBM DS5020 - page 38

    Using non-supported E-DDM options or FRUs will result in the E-DDM being locked out by the DS5020 controller firmware and might also damage the drive connector in the enclosure midplane. Attention: 1. After you remove an E-DDM CRU, wait 70 seconds before replacing or reseating the E-DDM CRU to allow it to properly spin down. Failure to do so might ...

  • IBM DS5020 - page 39

    Connectors, switch, and enclosure ID The controllers support fiber-optic interfaces for both the host channel and drive channel ports. The controllers also contain two Ethernet ports for storage subsystem management purposes and a serial port that IBM Support uses to perform problem recovery and troubleshooting procedures. The default IP addresses ...

  • IBM DS5020 - page 40

    Controller B Controller A Fibre Channel host channels Ethernet por ts Serial por t Enclosure ID Dual-por ted drive channel Enclosure ID Ethernet por ts Serial por t Dual-por ted drive channel Fibre Channel host channels Figure 2. Back view; controllers with two standard Fibre Channel host expansion channels Controller B Controller A Fibre Channel h ...

  • IBM DS5020 - page 41

    Setting up IP addresses for DS5020 storage controllers After you install DS Storage Manager (as described in the DS Storage Manager Installation and Support Guide for your host operating system), complete one of the following procedures to set up IP addresses: v “Steps for setting up the DHCP/BOOTP server and network” v “Steps for assigning s ...

  • IBM DS5020 - page 42

    2. Start the DS Storage Manager client software. The Enterprise Management window opens. 3. Add the DS5020 subsystem to the Enterprise Management domain using the IP address of the host that has Fibre Channel connectivity to the DS5020. 4. In the Enterprise Management window , click on the name of the default storage subsystem. The Subsystem Manage ...

  • IBM DS5020 - page 43

    6. In the Change Network Configuration window , click on the Controller A and Controller B tabs and type the new TCP/IP addresses in their applicable fields. Click OK . 7. Close the Subsystem Management window , wait at least five minutes, then delete the default DS5020 storage subsystem entry in the Enterprise Management window . 8. If applicable, ...

  • IBM DS5020 - page 44

    Figure 6 shows a power supply and fan unit and the airflow through the storage subsystem. Battery units Statement 2: Figure 6. Power supply and fan unit and airflow 14 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 45

    CAUTION: When replacing the lithium battery , use only an equivalent type battery recommended by the manufacturer . If your system has a module containing a lithium battery , replace it only with the same module type made by the same manufacturer . The battery contains lithium and can explode if not properly used, handled, or disposed of. Do not: v ...

  • IBM DS5020 - page 46

    controller will start a battery learning cycle to determine whether the battery current capacity is sufficient. Data caching starts after the battery is charged to the programmed level. During the battery learn cycle, cache will be active if the battery is in good condition. If the battery fails the learn cycle, it is marked as failed. The battery ...

  • IBM DS5020 - page 47

    The storage subsystem supports a fiber-optic interface for host and storage expansion enclosure connections. Y ou must install a Small Form-factor Pluggable (SFP) module in each interface connector on the controller where a fiber-optic cable is to be installed. Do not install an SFP in any port that will not have a fiber-optic cable attached. Remov ...

  • IBM DS5020 - page 48

    Software and firmware support code upgrades T o enable support for the DS5020, you must make sure that your system software and firmware are the correct versions. T o find the latest DS Storage Manager software, storage subsystem controller firmware, ESM, and NVSRAM firmware, check the firmware readme files. See “Finding DS5020 and DS4000-family ...

  • IBM DS5020 - page 49

    Y ou must perform this step for each individual controller . T o obtain the drive firmware (and A T A translator card firmware) version: Right-click the Drive icon in the Physical View pane of the Subsystem Management window and select Properties . The Drive Properties window opens and displays the properties for that drive. Y ou must perform this ...

  • IBM DS5020 - page 50

    the storage subsystem in different configurations. T able 3 lists the weight of each component. T able 2. DS5020 weights Unit Weight Maximum 1 Empty 2 Shipping DS5020 40 kg (88 lb) 16.4 kg (36.1 lb) 52.2 kg (1 15.0 lb) 1 Chassis with all CRUs and 16 drives. 2 Chassis without CRUs and drives but with front cage frame and midplane. T able 3. DS5020 c ...

  • IBM DS5020 - page 51

    T able 5. T emperature and humidity requirements for storage subsystem when in storage or in transit Condition Parameter Requirement T emperature Storage range -10° - 65° C (14° - 149° F) Maximum rate of change 15° C (27° F) per hour T ransit range -40° C to 65° C (-40° F to 149° F) Maximum rate of change 20° C (36° F) per hour Relative ...

  • IBM DS5020 - page 52

    T able 8 lists the KV A, watts, and Btu calculations. These values assume the power supplies have a 73 percent efficiency and a power factor of 0.99. These tabulated power and heat dissipation values are typical for the storage subsystem. Maximum configuration units are typically operated at higher data rates, have larger random access memory (RAM) ...

  • IBM DS5020 - page 53

    These levels are measured in controlled acoustical environments according to ISO 7779 and are reported in accordance with ISO 9296. The declared sound power levels indicate an upper limit, below which a large portion of machines operate. Sound pressure levels in your location might exceed the average 1-meter values stated because of room reflection ...

  • IBM DS5020 - page 54

    Power cords and receptacles: The storage subsystem ships with two jumper cords used to connect to the rack PDU. Y ou must purchase the power cords that are appropriate for use in a typical outlet in the destination country . See Appendix D, “Power cords,” on page 179 for more information. Heat output, airflow , and cooling See “Airflow and he ...

  • IBM DS5020 - page 55

    1220 mm cold aisle width 2440 mm between center lines of hot and cold aisle Perforated tiles or gratings back back T42 racks T42 racks T42 racks Cold aisle Hot aisle Air conditioner back front front front Airflow Figure 1 1. Example of cold aisle/hot aisle rack configuration Chapter 1. Introduction 25 ...

  • IBM DS5020 - page 56

    26 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 57

    Chapter 2. Installing the storage subsystem This chapter provides the information that you need to install the storage subsystem into a rack cabinet. Before you begin the installation, review the safety information in “Safety” on page xiii. “Installation overview” provides an overview of the entire storage subsystem installation process. Re ...

  • IBM DS5020 - page 58

    5. Before removing the DS5020 from the shipping box, remove the components from the DS5020 chassis to lighten the unit. See “Removing the CRUs” on page 36. 6. Record the serial number , machine type and model number , and RAID controller MAC addresses for your DS5020 storage subsystem in Appendix A, “Records,” on page 163. The serial number ...

  • IBM DS5020 - page 59

    13. T urn on the power to the attached storage expansion enclosure and the DS5020 storage subsystem using the procedure described in “Powering on the storage subsystem” on page 95. 14. Install the DS Storage Manager host software on the management workstation (for out-of-band management) or on the host (for in-band management). Refer to the IBM ...

  • IBM DS5020 - page 60

    Suppor t rails DS5020 Storage subsystem Backup battery unit Controller AC po wer supply and fan unit M5 x 8 mm screws (12) M4 x 8 mm screws (4) Small Form-factor Pluggable transceiv ers (pre-installed) AC po wer cord (2) Firmware and DS Storage Manager D VDs Complete the following steps to prepare the DS5020 storage subsystem for installation into ...

  • IBM DS5020 - page 61

    Attention: The mounting rails, mounting hardware, and line jumper cords might be packed beneath the DS5020 in the shipping box. T o remove these items from the shipping box without first removing the DS5020, open the two long sides of the shipping box. Then open and fold flat the two short sides of the shipping box. This enables you to access the m ...

  • IBM DS5020 - page 62

    v Sufficient space to install the storage subsystem v Enough stability to support the weight of the fully configured storage subsystem and associated systems. See “Weight” on page 19 for weight specifications. Make sure that all requirements, such as floor space, air conditioning, and electrical service, have been met. Other site preparation ac ...

  • IBM DS5020 - page 63

    Use the following templates (Figure 13 and Figure 14 on page 34) to identify the proper locations for inserting M5 screws when mounting the support rails and DS5020 storage subsystem to a rack cabinet. The locations for the M5 screws are highlighted in the templates. Hold the applicable template up to each side of the rack cabinet at the 3U section ...

  • IBM DS5020 - page 64

    Before installing the DS5020 in a rack cabinet, you must install the rails and rack-mounting hardware that come with your storage subsystem. The DS5020 requires an Electronic Industries Association (EIA) 310-D T ype A 19-inch rack cabinet. The distance between EIA rails, from the front to the rear of the rack, is 60.96 cm (24 in.) minimum and 81.28 ...

  • IBM DS5020 - page 65

    1. Make sure that the rack cabinet has already been installed. 2. Make sure that a stabilizer has been correctly attached to the bottom front of the rack to prevent the rack from tipping forward while the DS5020 is being installed. Refer to the installation and service guide, or equivalent, for the rack as required. 3. Locate the two support rails, ...

  • IBM DS5020 - page 66

    v The lip on the rail lines up with the bottom of the storage subsystem (the 0U boundary in Figure 14 on page 34). 5. Using a No. 2 Phillips screwdriver , loosen the two screws on the left support rail that hold the two parts of the rail together . The support rails are marked as left or right. 6. Hold the back of the rail against the inside of the ...

  • IBM DS5020 - page 67

    installed the support rails (as listed in “Installing the support rails” on page 32). Alternately , you can use these instructions to lighten the DS5020 before removing it from the shipping box. The shipping box opens to provide access to the storage subsystem CRUs. The DS5020 comes with a rack-mounting hardware kit for installing it in a rack. ...

  • IBM DS5020 - page 68

    3. Place the controller on a level surface. 4. Repeat step 1 through step 3 for the second controller . Removing an ac power supply and fan unit Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one ...

  • IBM DS5020 - page 69

    3. Place the power supply and fan unit on a level surface. 4. Repeat step 1 through step 3 for the second power supply and fan unit. Removing an E-DDM Complete the following steps to remove a hot-swap E-DDM: Note: The E-DDM comes installed in a drive tray . Do not attempt to detach the E-DDM from the tray . 1. Use T able 24 on page 166 to record th ...

  • IBM DS5020 - page 70

    5. Place the E-DDM CRU horizontally on a level surface. Attention: Do not stack E-DDM CRUs on top of one another . Protect the E-DDM CRUs from vibrations or sudden shocks. 6. Repeat step 1 through step 4 on page 39 for additional E-DDM CRUs. Installing the DS5020 into a rack on the support rails Complete the following steps to install the DS5020 in ...

  • IBM DS5020 - page 71

    4. Secure the storage subsystem. Figure 20 shows how to secure the storage subsystem to the rack. a. Align the front mounting holes on each side of the storage subsystem with the mounting holes on the front of the support rails. b. Using the M4 screws that you removed in step 2 on page 40, secure the sides in the back of the DS5020 to the rack rail ...

  • IBM DS5020 - page 72

    5. Continue with one of the following actions: v If you did remove the DS5020 CRUs before installation (as described in “Removing the CRUs” on page 36), continue with “Replacing the components.” v If you did not remove the DS5020 CRUs before installation, continue with Chapter 3, “Cabling the storage subsystem,” on page 45. Replacing th ...

  • IBM DS5020 - page 73

    Replacing an ac power supply and fan unit Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. T o remove all electrical current from the device, ensure that all power cords are disconn ...

  • IBM DS5020 - page 74

    along the sides of the power supply and fan unit bay . After the guide pins fit into the notches and power supply and fan unit fits snugly into the slot, push the lever upward or downward 90° depending on whether the power supply fan is inserted in the left or right bay to fully latch it into place. Push the front of the power supply and fan unit ...

  • IBM DS5020 - page 75

    Chapter 3. Cabling the storage subsystem After the storage subsystem is installed in its permanent location, you must cable it to hosts, drives, and other external devices, depending on your hardware configuration. This chapter addresses the following cabling and configuration topics: v “Enclosure ID settings” v “Fibre Channel loop and ID set ...

  • IBM DS5020 - page 76

    Fibre Channel loop and ID settings When you install a hard disk drive in the storage subsystem, the drive tray plugs into a printed circuit board called the midplane . The midplane sets the Fibre Channel loop ID automatically , based on the enclosure ID switch setting and the physical location (bay) of the hard disk drive. W orking with SFPs and fi ...

  • IBM DS5020 - page 77

    Statement 3: CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber-optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. v Use of controls or adjustment ...

  • IBM DS5020 - page 78

    Installing SFP modules The DS5020 requires SFP modules. SFP modules convert electrical signals to optical signals that are required for Fibre Channel transmission to and from RAID controllers. Note: The SFPs are preinstalled in the DS5020. If the SFPs are not preinstalled in your DS5020 hardware, or if you need to replace them, use the information ...

  • IBM DS5020 - page 79

    v The operational or redundant loop performance is not affected when you install or remove an SFP module. v Y ou must insert the SFP module into a port before you connect the fiber-optic cable. v Y ou must remove the fiber-optic cable from the SFP module before you remove the SFP module from the port. Refer to “Removing SFP modules” on page 50 ...

  • IBM DS5020 - page 80

    3. Remove the protective cap from the SFP port. Save the protective cap for future use. 4. Insert the SFP module into the host port until it clicks into place. See Figure 27. 5. Connect an LC-LC Fibre Channel cable. For information about the LC-LC cable, see “Using LC-LC Fibre Channel cables” on page 51. Removing SFP modules Complete the follow ...

  • IBM DS5020 - page 81

    v For SFP modules that contain wire tabs, unlock the SFP module latch by pulling the wire latch outward 90°, as shown in Figure 29. 3. With the SFP latch in the unlocked position, extract the SFP module. v For SFP modules that contain plastic tabs, slide the SFP module out of the port. v For SFP modules that contain wire tabs, grasp the wire latch ...

  • IBM DS5020 - page 82

    Connecting an LC-LC cable to an SFP module Complete the following steps to connect an LC-LC Fibre Channel cable to an SFP module: Statement 3: CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber-optic devices, or transmitters) are installed, note the following: v Do not remove the covers. Removing the covers of the laser product could ...

  • IBM DS5020 - page 83

    4. Carefully insert this end of the LC-LC cable into an SFP module that is installed in the DS5020. The cable connector is keyed so it will be inserted into the SFP module correctly . Holding the connector , push in the cable until it clicks into place, as shown in Figure 32. 5. Remove the two protective caps from the other end of the LC-LC cable. ...

  • IBM DS5020 - page 84

    Removing an LC-LC Fibre Channel cable Complete the following steps to remove an LC-LC Fibre Channel cable: Attention: T o avoid damaging the LC-LC cable or SFP module, make sure that you observe the following precautions: v Press and hold the lever to release the latches before you remove the cable from the SFP module. v Make sure that the levers a ...

  • IBM DS5020 - page 85

    In the initial installation of the DS5020, you can add only new storage expansion enclosures to the DS5020 storage subsystem. This means there must be no existing configuration information about the storage expansion enclosures that you want to install. The DS5020 supports the attachment of up to six EXP520 and EXP810 storage expansion enclosures, ...

  • IBM DS5020 - page 86

    Overview of steps to connect storage expansion enclosures to a storage subsystem T o connect storage expansion enclosures to the storage subsystem, perform the following steps: Note: The following procedures are for ″ cold-case ″ procedures (in which the DS5020 is powered down when storage expansion enclosures are connected, as in the case of i ...

  • IBM DS5020 - page 87

    1. Follow the instructions in the Installation, User’s, and Maintenance Guide for your DS5000 or DS4000 storage expansion enclosure to set up and mount the storage expansion enclosures. 2. Select a cabling topology appropriate for the number of storage expansion enclosures you will connect to the DS5020. If you are connecting external storage exp ...

  • IBM DS5020 - page 88

    Important: The DS5020 supports the connection of a maximum of six storage expansion enclosures per redundant drive channel pair . The DS5020 supports one redundant drive channel pair . If you are using fiber-optic cables, install SFP modules into the ports that will receive the cables before installing the cables. Figure 36 and shows the locations ...

  • IBM DS5020 - page 89

    One DS5020 and one storage expansion enclosure If you are cabling one DS5020 storage subsystem to one storage expansion enclosure, Figure 37 shows the correct cabling topology . Note: Figure 37 illustrates the drive channel connections between the DS5020 and the storage expansion enclosures. Do not use Figure 37 as the cabling diagram. Follow the i ...

  • IBM DS5020 - page 90

    One DS5020 and two storage expansion enclosures If you are cabling one DS5020 storage subsystem and two storage expansion enclosures, connect one storage expansion enclosure per controller drive port as shown in Figure 38. Figure 39 on page 61 shows that you can also connect two expansion enclosures together behind a single controller drive port. A ...

  • IBM DS5020 - page 91

    Important: Do not cable the DS5020 storage subsystem and two storage expansion enclosures as shown in Figure 39. A storage array with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results. DS5020 P or t 2, drive channel 1 P or t 1, drive channel 1 P or t 1, drive channel 2 P o ...

  • IBM DS5020 - page 92

    One DS5020 and three storage expansion enclosures If you are cabling one DS5020 storage subsystem and three storage expansion enclosures, Figure 40 shows the correct cabling topology . 1A 1B DS5020 P or t 2, drive channel 1 1A 1B 1A 1B 1A 1B P or t 1, drive channel 1 P or t 1, drive channel 2 P or t 2, drive channel 2 1A 1B 1A 1B Figure 40. Cabling ...

  • IBM DS5020 - page 93

    One DS5020 and four storage expansion enclosures If you are cabling one DS5020 storage subsystem and four storage expansion enclosures, Figure 41 shows the correct cabling topology . 1A 1B DS5020 P or t 2, drive channel 1 1A 1B 1A 1B 1A 1B P or t 1, drive channel 1 P or t 1, drive channel 2 P or t 2, drive channel 2 1A 1B 1A 1B 1A 1B 1B 1A Figure 4 ...

  • IBM DS5020 - page 94

    One DS5020 and up to six storage expansion enclosures If you are cabling one DS5020 storage subsystem and up to six storage expansion enclosures, Figure 42 shows the correct cabling topology . 1A 1B DS5020 P or t 2, drive channel 1 1A 1B 1A 1B 1A 1B P or t 1, drive channel 1 P or t 1, drive channel 2 P or t 2, drive channel 2 1A 1B 1B 1A 1B 1A 1B 1 ...

  • IBM DS5020 - page 95

    Figure 43 on page 66 shows a cabling topology that is incorrect because all six storage expansion enclosures are connected to a single drive port of the dual-ported drive channel in each controller . Chapter 3. Cabling the storage subsystem 65 ...

  • IBM DS5020 - page 96

    Important: Do not cable the storage subsystem and storage expansion enclosures as shown in Figure 43. A storage array with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results. One DS5020 and two or more storage expansion enclosures in a mixed configuration A mixed configurat ...

  • IBM DS5020 - page 97

    EXP520s are denoted in the graphic as 1 while the EXP810s are denoted as 2 .) DS5020 storage subsystem and supported storage expansion enclosure drive cabling schemes The DS5020 supports only EXP520 and EXP810 storage expansion enclosures. T o attach one or more EXP810 storage expansion enclosures to the DS5020 storage subsystem, you mu ...

  • IBM DS5020 - page 98

    1. Do not connect a combination of more than six EXP520 or EXP810 storage expansion enclosures to the two ports of a dual-ported drive channel. Failure to observe this limitation might result in loss of data availability . In the DS5020 storage subsystem environment, no more than six EXP520 or EXP810 storage expansion enclosures can be connected to ...

  • IBM DS5020 - page 99

    13. The DS5020 supports the intermix of SA T A and Fibre Channel E-DDMs within the same drive enclosure. ESM B ESM A EXP810 ESM B ESM A EXP810 First EXP810 storage e xpansion enclosure Last EXP810 storage e xpansion enclosure DS5020 ESM por t 1A ESM por t 1B ESM por t 1A ESM por t 1A ESM por t 1B ESM por t 1A ESM por t 1A ESM por t 1B Drive channel ...

  • IBM DS5020 - page 100

    One DS5020 and one EXP520 storage expansion enclosure Figure 46 shows the cabling scheme for one DS5020 storage subsystem and one EXP520 storage expansion enclosure. Perform the following steps to create the cabling scheme shown in Figure 46: 1. Connect either port 2 or port 1 of the dual-ported drive channel 1 in controller A on the DS5020 to port ...

  • IBM DS5020 - page 101

    One DS5020 and two EXP520 storage expansion enclosures Figure 47 shows the cabling scheme for one DS5020 storage subsystem and two EXP520 storage expansion enclosures behind both ports of a dual-ported drive channel. Perform the following steps to create the cabling scheme shown in Figure 47: 1. Connect port 2 of drive channel 1 on the DS5020 to po ...

  • IBM DS5020 - page 102

    One DS5020 and three or more EXP520 storage expansion enclosures T o connect three or more storage expansion enclosures to a DS5020 storage subsystem, alternately connect a storage expansion enclosure to one of the drive ports of the dual-ported drive channel then connect to the other port until all of the storage expansion enclosures are attached. ...

  • IBM DS5020 - page 103

    4. Connect port 1 of drive channel 2 on the DS5020 to port 1B on the right ESM in EXP520 three. 5. Connect port 1B on the left ESM in EXP520 two to port 1 of drive channel 1 on the DS5020. 6. Connect port 1B on the right ESM in EXP520 two to port 2 of drive channel 2 on the DS5020. Figure 49 on page 74 shows the cabling scheme for one DS5020 storag ...

  • IBM DS5020 - page 104

    Perform the following steps to create the cabling scheme shown in Figure 49: 1. Connect port 1A on the left ESM in EXP520 one to port 1B on the left ESM in EXP520 three. 2. Connect port 1A on the right ESM in EXP520 three to port 1B on the right ESM in EXP520 one. 3. Connect port 1B on the left ESM in EXP520 one to port 2 of drive channel 1 on the ...

  • IBM DS5020 - page 105

    5. Connect port 1A on the left ESM in EXP520 two to port 1B on the left ESM in EXP520 four . 6. Connect port 1A on the right ESM in the EXP520 four to port 1B on the right ESM in EXP520 two. 7. Connect port 1B on the left ESM in EXP520 two to port 1 of drive channel 1 on the DS5020. 8. Connect port 2 of drive channel 2 on the DS5020 to port 1B on t ...

  • IBM DS5020 - page 106

    Perform the following steps to create the cabling scheme shown in Figure 50: 1A 1B DS5020 P or t 2, drive channel 1 1A 1B 1A 1B 1A 1B P or t 1, drive channel 1 P or t 1, drive channel 2 P or t 2, drive channel 2 1A 1B 1B 1A 1B 1A 1B 1A 1B 1B 1A 1B 1B 1A 1A 1A EXP520 one EXP520 two EXP520 three EXP520 four EXP520 five EXP520 six Figure 50. One DS502 ...

  • IBM DS5020 - page 107

    1. Connect port 1A on the left ESM in EXP520 one to port 1B on the left ESM in EXP520 three. 2. Connect port 1A on the right ESM in EXP520 three to port 1B on the right ESM in EXP520 one. 3. Connect port 1B on the left ESM in EXP520 one to port 2 of drive channel 1 on the DS5020. 4. Connect port 1A on the left ESM in EXP520 three to port 1B on the ...

  • IBM DS5020 - page 108

    Storage expansion enclosure settings This section provides information about storage expansion enclosure settings. For additional detail, refer to the Installation, User’s, and Maintenance Guide for your storage expansion enclosure. Fibre Channel loop and ID settings When you install an E-DDM in the storage expansion enclosure, the E-DDM tray plu ...

  • IBM DS5020 - page 109

    Important: 1. The serial interface ports are intended to be used by service technicians to perform diagnostic operations on the storage subsystem. Incorrect use of the serial port can result in loss of data access and, in some cases, in loss of data. Do not make connections to the serial port unless you do so under the direct supervision and guidan ...

  • IBM DS5020 - page 110

    Storage subsystem management methods Before you configure the storage subsystem, determine which method of storage subsystem management you want to use. Y ou can manage the storage subsystems in either of two ways: host-agent (in-band) management or direct (out-of-band) management. For more information about setting up in-band or out-of-band manage ...

  • IBM DS5020 - page 111

    Direct (out-of-band) management method This method uses Ethernet connections from a management station to each controller . Y ou must install at least one management station. The management station can be the host or a workstation on the Ethernet network. A management station will have the client software installed. Attach Ethernet cables to each m ...

  • IBM DS5020 - page 112

    Connecting hosts to the DS5020 using Fibre Channel host ports The DS5020 supports redundant direct attached connections to up to four hosts. T o Make sure that you have full protection against the loss of any one Fibre Channel path from the host servers to the DS5020 storage subsystem, always use redundant host connections by connecting each host t ...

  • IBM DS5020 - page 113

    the SFP modules of the host bus adapters. Figure 54 shows the location on the RAID controllers of the DS5020 storage subsystem where the host-system cables connect. Note: DS5020 controllers with four Fibre Channel host ports is shown in the following illustration. The host channel configuration in your DS5020 hardware might differ slightly from the ...

  • IBM DS5020 - page 114

    For other examples of redundant host configurations, see “Fibre Channel host loop configurations” on page 85. Fibre Channel and iSCSI connections A DS5020 storage subsystem Fibre Channel connection consists of up to four host Fibre Channel loops and a redundant drive Fibre Channel loop. The host Fibre Channel loops provide the fibre path for ho ...

  • IBM DS5020 - page 115

    Fibre Channel host loop configurations Y ou must determine how the host systems will connect to the storage subsystem. Y ou can connect up to four host systems directly to the storage subsystem through Fibre Channel host ports, or you can connect more than four hosts to the Fibre Channel storage subsystem through switches. The illustrations in the ...

  • IBM DS5020 - page 116

    In Figure 57, the Fibre Channel switches are connected together via the inter-switch link (ISL) to form a single SAN fabric. In Figure 58, the Fibre Channel switches are connected together via the inter-switch link (ISL) to form a dual SAN fabric. In Figure 59 on page 87, the Fibre Channel switches are not connected together . Each switch forms its ...

  • IBM DS5020 - page 117

    Figure 60 shows an example of a two-cluster configuration. iSCSI configurations The DS5020 storage subsystem supports 1 Gbps iSCSI connectivity . Y ou must determine how the host systems will connect to the storage subsystem. The illustrations in the following sections show common iSCSI host system configurations. The iSCSI ports support IPv4 and I ...

  • IBM DS5020 - page 118

    Note: The minimum DS5020 configuration is two partitions. The maximum is 128 partitions. Configuration upgrades are available as upgrade options. Contact your IBM reseller or marketing representative for more information. DS5020 host iSCSI configurations This section provides the following examples of DS5020 host iSCSI configurations: v Single-host ...

  • IBM DS5020 - page 119

    Figure 63 shows iSCSI and Fibre Channel hosts in a multiple-port configuration. Gigabit Ethernet switch Host system with two iSCSI connectors DS5020 Host system with two iSCSI connectors Ethernet switch Figure 62. Example of a multiple-host, multiple-port configuration Gigabit Ethernet switch Host 1 with a dual-por t Fibre Channel HBA DS5020 Fibre ...

  • IBM DS5020 - page 120

    Figure 64 shows an incorrect configuration of a single host with both iSCSI and Fibre Channel connections. Important: Do not cable the storage subsystem and host systems as shown in Figure 64. A storage subsystem with the incorrect storage topology might appear to be functional, but incorrect cabling can potentially have unpredictable results. Figu ...

  • IBM DS5020 - page 121

    Installing the storage subsystem configuration Using the information gathered in the previous sections, install the host systems and host adapters. Notes: 1. See the documentation provided with your host adapters for installation requirements and procedures. 2. Use the correct host adapter driver . For the latest supported host adapters and drivers ...

  • IBM DS5020 - page 122

    92 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 123

    Chapter 4. Operating the storage subsystem This chapter describes operating procedures for the DS5020. For information about the optimal operation of your system, see “Best practices guidelines” on page 5 Performing the DS5020 Health Check process The DS5020 Health Check process is a sequence of suggested actions developed by IBM to help users ...

  • IBM DS5020 - page 124

    Note: When you upgrade firmware, you must upgrade all client package components to the same release level. For example, if you are upgrading your controller firmware from version 6.x to version 7.x, you must also upgrade your Storage Manager client to version 10.x or higher . If your host system uses RDAC, upgrading controller firmware from version ...

  • IBM DS5020 - page 125

    v Make sure that all ESMs are properly seated. v Make sure that all drives are properly seated. v Make sure that all SFP modules are properly seated. v Confirm Fibre Channel cable loop size. (Although IBM specifications require at least 3-inch cable loops, use 6-inch cable loops or longer .) v Make sure that you have proper Fibre Channel cable mana ...

  • IBM DS5020 - page 126

    Note: If the power cords are not connected, turn off both power switches on all modules in the configuration before connecting power cords or turning on the main circuit breakers. 3. If the main circuit breakers are turned off, turn them on. 4. V erify that the link rate setting on the front of the storage expansion enclosure matches the speed of t ...

  • IBM DS5020 - page 127

    d. Review the status of the configuration components shown in the Subsystem Management window by selecting the applicable component button for each storage subsystem. 8. Are the LEDs indicating normal operation, and is the status Optimal on all the configuration components? v Y es — End of procedure. v No — Go to step 9. 9. Diagnose and correct ...

  • IBM DS5020 - page 128

    http://www .ibm.com/systems/support/storage/disk Before any planned system shutdown or after any system additions, removals, or modifications (including firmware updates, logical drive creations, storage partitioning definitions, hardware changes, and so on), save the storage subsystem profile as explained in the DS Storage Manager guide for your o ...

  • IBM DS5020 - page 129

    of a hard disk drive exceeding its PF As), the Needs Attention LED does not turn on. Only the DS Storage Manager client can detect the failure. For example, the recovery procedure for a Predictive Failure Analysis ® (PF A) flag (impending drive failure) on a drive varies depending on the drive status (hot spare, unassigned, RAID level, current log ...

  • IBM DS5020 - page 130

    http://www .ibm.com/systems/support/storage/disk Always check the readme files that are included with the firmware packages for the most up-to-date information about firmware prerequisites, firmware update instructions, and host I/O restrictions, if any . Apply the necessary updates before configuring the storage subsystem arrays and logical drives ...

  • IBM DS5020 - page 131

    6. Check the indicator LEDs on the front and the back of the storage expansion enclosure. A green LED denotes a normal status; an amber LED denotes a hardware fault. 7. Is an amber LED on? v Ye s - Locate and troubleshoot the failed components. See “Checking the LEDs.” v No - Y ou are finished with this procedure. If you are still experiencing ...

  • IBM DS5020 - page 132

    T able 12. Power supply and fan unit LEDs LED Normal Status Problem Status Power supply and fan unit power On Off Service Action Allowed (OK to Remove) Off On Service Action Required (Fault) Off On Direct Current Enabled On Of f Front LEDs This section describes the primary LEDs and controls on the front of the DS5020 storage subsystem. P ower supp ...

  • IBM DS5020 - page 133

    T able 13. Front LEDs and controls LED Normal Status Problem Status Drive Activity LED On (not blinking) - No data is being processed Blinking - Data is being processed Off Drive Fault LED Off Blinking - Drive, volume, or storage array locate function On (not blinking) Global Locate On only when you activate the locate function in the DS Storage Ma ...

  • IBM DS5020 - page 134

    T able 14. Battery unit LEDs LED Normal Status Problem Status Service Action Allowed (OK to Remove) Off On Service Action Required (Fault) Off On Battery Charging Green means on, ready Blinking green means charging Off The Global Power , Global Summary Fault, and Global Locate LEDs are general indicators for the entire DS5020 storage subsystem (or ...

  • IBM DS5020 - page 135

    Hear tbeat LED Diagnostic LED Cache active LED Service action required LED Service action allowed LED Host channel speed - L1 LED Drive channel por t bypass LED Drive channel speed LED Ethernet link activity LED Ethernet link speed LED Host channel speed - L2 LED Figure 69. LEDs, controls, and connectors of controllers with two standard Fibre Chann ...

  • IBM DS5020 - page 136

    T able 15. Rear controller LEDs, controls, and connectors LED Normal Status Problem Status Service Action Allowed (OK to Remove) Off On Service Action Required (Fault) Off On Cache Active On - Data is in cache Off - Caching is turned of f. No data in cache Not applicable Diagnostic On - Seven-segment LEDs indicate diagnostic code Off - Seven-segmen ...

  • IBM DS5020 - page 137

    T able 15. Rear controller LEDs, controls, and connectors (continued) LED Normal Status Problem Status Ethernet Link Activity On - link established Off - no link established Blinking - activity Not applicable Drive Channel Port Bypass (One LED per port) Note: The drive channel consists of two FC ports. This LED indicates the drive port bypass statu ...

  • IBM DS5020 - page 138

    When you turn on the power to the storage subsystem, the seven-segment LEDs show 88 before the boot firmware starts to run. After the boot code starts ,--i s displayed. When the storage subsystem is operating normally , the numeric display shows the enclosure identification (enclosure ID) of the storage subsystem. If an error has occurred and the N ...

  • IBM DS5020 - page 139

    T able 17. Numeric display diagnostic codes (continued) V alue Controller State Description LA Suspended Reserved LB Suspended Host card configuration error LC Suspended Persistent cache backup configuration error LD Suspended Mixed cache memory DIMMs LE Suspended Uncertified cache memory DIMM sizes LF Suspended Lockdown with limited SYMbol support ...

  • IBM DS5020 - page 140

    Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. T o remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 1 2 CAUTION: ...

  • IBM DS5020 - page 141

    Use the following procedure to turn off power to one or more storage subsystems for a planned shutdown. T o turn off power for an unplanned shutdown, see “Restoring power after an unexpected shutdown” on page 1 12. Before proceeding, use the Storage Manager client to determine the status of the system components and special instructions. The op ...

  • IBM DS5020 - page 142

    9. T urn off both power switches on the back of each storage expansion enclosure in the configuration. CAUTION: The power switch on the power supply and fan unit does not turn off the electrical current supplied to the device. The DS5020 storage subsystem might also have more than one connection to ac power . T o remove all electrical current from ...

  • IBM DS5020 - page 143

    Risk of severe electrical shock – Never turn on the power to any equipment if there is evidence of fire, water , or structural damage. Doing so might cause severe electrical shock 1. After the emergency situation is over or power is restored, visually check the storage subsystem for damage. Is there evidence of damage to any of the storage subsys ...

  • IBM DS5020 - page 144

    Recovering from an overheated power supply and fan unit Each storage subsystem contains two power supply and fan units. Each power supply and fan unit contains a built-in temperature sensor designed to prevent it from overheating. Under normal operating conditions, with an ambient air temperature range of 10° C to 35° C (50° F to 95° F), the fa ...

  • IBM DS5020 - page 145

    v Ye s - Go to step 4. v No - Perform the procedure “T roubleshooting the storage subsystem ” on page 100 to verify that the power supplies have shut down because of an overheating problem, and then go to step 4. 4. Stop I/O activity to the storage subsystem and all attached storage expansion enclosures. 5. T ake all or some of the following me ...

  • IBM DS5020 - page 146

    10. Check the status LEDs on the front and back of the storage subsystem. a. Note the status of the LEDs on the front and back of each module. A green LED indicates a normal status; amber LEDs indicate a hardware fault. b. Open the Subsystem Management window for the storage array . c. Select the applicable components button for each module in the ...

  • IBM DS5020 - page 147

    If caching is enabled and the Cache Active LED never comes on during I/O activity , it indicates one of the following conditions: v The cache memory from either controller A or controller B has failed. v The cache sizes in controller A and controller B are not the same. v The battery has failed. (In this case, one or both of the green Battery LEDs ...

  • IBM DS5020 - page 148

    Statement 2: CAUTION: When replacing the lithium battery , use only an equivalent type battery recommended by the manufacturer . If your system has a module containing a lithium battery , replace it only with the same module type made by the same manufacturer . The battery contains lithium and can explode if not properly used, handled, or disposed ...

  • IBM DS5020 - page 149

    interruption is caused if you remove the battery from the controller chassis, reset the power to the storage subsystem, or if a storage expansion enclosure or battery overheats. Data caching starts after the battery is charged to the programmed voltage level, which occurs when the storage subsystem power is first turned on, when a new battery is in ...

  • IBM DS5020 - page 150

    120 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 151

    Chapter 5. Replacing components This chapter contains information about replacing a controller , E-DDM CRU, power supply and fan unit CRU, battery unit, SFP module, and midplane. Attention: Always replace a failed component as soon as possible. The Recovery Guru menu function in the DS5020 storage subsystem identifies failed components. Handling st ...

  • IBM DS5020 - page 152

    The Service Action Allowed status LED automatically turns on or off as conditions change. W ait at least two minutes after you replace each component for the controller to recognize the new component and update the LED status. In most cases when a single component fails, the Service Action Allowed status LED turns on steadily when the Needs Attenti ...

  • IBM DS5020 - page 153

    5. Unpack the new controller . Save all packing materials in the event you need to return the new controller . 6. Determine whether the replacement controller will serve as controller A or controller B (controller A is inserted in the left controller bay; controller B is inserted in the right controller bay), and then apply the controller labels fo ...

  • IBM DS5020 - page 154

    a. Remove the LC-LC Fibre Channel cable from the SFP module. For more information, see “Handling fiber-optic cables” on page 47. b. Unlock the SFP module latch: v For SFP modules that contain plastic tabs, unlock the SFP module latch by pulling the plastic tab outward 10°, as shown in Figure 75. v For SFP modules that contain wire tabs, unlock ...

  • IBM DS5020 - page 155

    125 shows the controller sliding from the storage subsystem chassis. 10. If the new controller does not have the cache battery backup unit already installed, follow the instructions in “Replacing a battery unit” on page 144 to remove the cache backup battery from the existing controller unit and insert it into the new controller CRU. 1 1. Insta ...

  • IBM DS5020 - page 156

    B controller bay to fully latch it into place. Do not force fit. The controller is designed to prevent it from being inserted into the chassis incorrectly . Attention: Make sure that the levers lock into place in the storage subsystem chassis. c. Repeat step 1 1a on page 125 and step 1 1b on page 125 to replace the second controller . 12. W ait up ...

  • IBM DS5020 - page 157

    v Blank trays: A storage subsystem without a full set of E-DDMs (16) contains blank trays in the unused drive bays. Before installing new E-DDMs, you must remove these empty trays. Save the empty trays for future use. Each of the 16 bays must always contain either a blank tray or a hot-swap E-DDM. For proper cooling and EMC protection, do not leave ...

  • IBM DS5020 - page 158

    v E-DDM CRUs are not interchangeable between the DS5020 and other DS4000 storage subsystems. T able 18. Drive LED activity LED LED state Descriptions Activity LED Flashing green The green LED flashes to indicate Fibre Channel activity to the drive. Activity LED Steady green The green LED lights to indicate that the drive is properly installed and i ...

  • IBM DS5020 - page 159

    3. Determine the bay into which you want to install the E-DDM. 4. Remove the blank tray by doing the following: a. Release the latch on the E-DDM CRU by pressing on the inside of the bottom of the tray handle. b. Lift the closed latch to its open position. (The latch is at a 90° angle to the front of the E-DDM when open.) c. Pull the blank tray ou ...

  • IBM DS5020 - page 160

    Note: Make sure that the EMC gasket does not snag on the bezel. d. Push the tray handle down until it latches into place. Replacing hot-swap E-DDMs E-DDM problems include any malfunctions that delay , interrupt, or prevent successful I/O activity between the hosts and the E-DDMs in the storage subsystem. This includes transmission problems between ...

  • IBM DS5020 - page 161

    Attention: After you remove an E-DDM CRU, wait 70 seconds before replacing or reseating the E-DDM CRU to allow it to properly spin down. Failure to do so might cause undesired events. 8. Use the DS Storage Manager subsystem management window to verify that the E-DDM is shown in the Storage Subsystem Management window . Replacing multiple E-DDMs Thi ...

  • IBM DS5020 - page 162

    v Which RAID level is used on the affected drives. (RAID 0 requires you to replace all the E-DDMs at the same time.) v How much downtime is acceptable as you swap the E-DDMs. v The number of E-DDMs in an array . Replacing E-DDMs one at a time is better suited for arrays consisting of 3 to 5 E-DDMs. If you have more than 10 E-DDMs or arrays that are ...

  • IBM DS5020 - page 163

    Set the E-DDMs on a dry , level surface away from magnetic fields. Save the packing material and documentation in case you need to return them. 5. Perform the following steps: a. Stop all I/O activity to the storage subsystem and attached storage expansion enclosures. Make sure of the following: 1) All of the green Drive activity LEDs on the front ...

  • IBM DS5020 - page 164

    a. T urn on the power to the supporting devices (for example, Ethernet switches and management stations) before you turn off power to the storage subsystem. b. Y ou must turn on the storage expansion enclosures before the storage subsystem. The controllers might not recognize the correct configuration if the E-DDMs are powered up after the storage ...

  • IBM DS5020 - page 165

    Read all precautionary notes, kit instructions, and other information. Kit instructions often contain the most current information regarding the E-DDMs and their installation, plus upgrade or servicing procedures. Compare the kit instructions with this procedure to determine if you need to modify this procedure. 2. Use the DS Storage Manager softwa ...

  • IBM DS5020 - page 166

    Note: The Drive fault LEDs might flash intermittently while the E-DDMs spin up. v If the Drive activity LED is off, the E-DDM CRU might not be installed correctly . Remove the E-DDM CRU, wait 30 seconds, and then reinstall it. v If the Drive fault LED stays on or the Drive activity LED stays off, the new E-DDM might be faulty or might be an uncerti ...

  • IBM DS5020 - page 167

    CAUTION: Do not change the link rate setting while the storage subsystem is running. Changing the link rate setting while the storage subsystem is running could cause drives to fail. Y ou must power down the storage subsystem and storage expansion enclosures before changing the link rate setting. Attention: All devices on the loop must have the sam ...

  • IBM DS5020 - page 168

    If both link rate indicator LEDs are on, the data transfer rate is set for 4 Gbps. If one link rate indicator light is on, the data transfer rate is set for 2 Gbps. Important: Make sure that the link rate for the DS5020 is always set to 4 Gbps. The DS5020 supports only 4 Gbps FC drives. 3. Is the data transfer rate set correctly? Note: Make sure th ...

  • IBM DS5020 - page 169

    c. When the procedure is completed, rerun the Recovery Guru to make sure that the problem has been corrected by selecting Recheck in the Recovery Guru. 1 1. If the problem persists, contact IBM Customer and T echnical Support. Replacing an ac power supply and fan unit Statement 5: CAUTION: The power control button on the device and the power switch ...

  • IBM DS5020 - page 170

    units in the unit will automatically shut down (an over-temperature condition). If this occurs, you must cool the unit and restart it. See “Restoring power after an unexpected shutdown” on page 1 12. Attention: The fans in the power supply and fan units draw in fresh air and force out hot air . The power supply and fan units are hot-swappable a ...

  • IBM DS5020 - page 171

    4. Unpack the new power supply and fan unit. Save all packing material in case you need to return the failed power supply and fan unit CRU. Note: The new power supply and fan unit CRU comes with an instruction sheet and label sheet. The instruction sheet provides instructions on placing the applicable labels on the power supply and fan unit CRU to ...

  • IBM DS5020 - page 172

    DANGER Electrical current from power , telephone, and communication cables is hazardous. T o avoid a shock hazard: v Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. v Connect all power cords to a properly wired and grounded electrical outlet. v Connect to p ...

  • IBM DS5020 - page 173

    Attention: The left and right power supply and fan units are seated in the DS5020 chassis in opposite orientations. If you cannot fully insert the power supply and fan unit into the power supply and fan unit bay , flip it 180° and reinsert it. Make sure that the levers lock into place in the storage subsystem chassis. Do not force fit. The power s ...

  • IBM DS5020 - page 174

    v Ye s - Select the Recovery Guru toolbar button in the Subsystem Management window and complete the recovery procedure. If a problem is still indicated, contact IBM Customer and T echnical Support. v No - Go to step 20. 20. Create, save, and print a new storage subsystem profile. Replacing a battery unit Statement 2: CAUTION: When replacing the li ...

  • IBM DS5020 - page 175

    1. Use the DS Storage Manager client software to print a storage subsystem profile. 2. Locate the RAID controller that contains the failed battery unit. 3. Check the LEDs on the battery units to determine which of the two battery units has failed. (See “Battery unit LEDs” on page 103.) Replace only the battery unit that is indicated as failed b ...

  • IBM DS5020 - page 176

    Attention: This product contains a sealed Lithium Ion battery . Discharged Lithium and Lithium Ion batteries are currently designated to be disposed of in normal trash. However , users should contact their municipal waste disposal facility prior to discarding any used battery in normal trash. Alternatively , you can return Lithium, Lithium Ion and ...

  • IBM DS5020 - page 177

    DANGER Some laser products contain an embedded Class 3A or Class 3B laser diode. Note the following. Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. Class 1 Laser statement Class 1 Laser Product Laser Klasse 1 Laser Klass 1 Luokan 1 Laserlaite Apparell Lase ...

  • IBM DS5020 - page 178

    Attention: Handle and install fiber-optic cables properly to avoid degraded performance or loss of communications with devices. For specific handling guidelines, see “Handling fiber-optic cables” on page 47. 6. Disconnect the interface cables from the SFP module. 7. Remove the failed SFP module from the controller . 8. Install the new SFP modul ...

  • IBM DS5020 - page 179

    Replacing a midplane Statement 5: CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. T o remove all electrical current from the device, ensure that all power cords are disconnected from the power ...

  • IBM DS5020 - page 180

    a. Squeeze the latch and pull the lever open 90° (so that the lever is horizontal) to release the power supply and fan unit from the latch. The latch is a coral colored tab on the lever . b. Slowly pull the lever away from the chassis to remove the power supply and fan unit, as shown in Figure 17 on page 39. (Remove the power supply and fan unit f ...

  • IBM DS5020 - page 181

    ≥ 18 kg (39.7 lb) ≥ 32 kg (70.5 lb) ≥ 55 kg (121.2 lb) CAUTION: Use safe practices when lifting. Pull the chassis outward from the front of the rack and remove from the rack. Place it on a level surface. Look for a row of three Phillips screws on top of the chassis and a row of four Phillips screws on the bottom of the chassis, as shown in Fi ...

  • IBM DS5020 - page 182

    15. Insert the new front cage plane/midplane by aligning it with the storage subsystem front opening and slowly sliding it into the storage subsystem chassis. Make sure that the front cage frame EMC gaskets do not snag between the frame and chassis. 16. T ighten the four front cage frame screws. See Figure 86 on page 150. 17. Install the seven Phil ...

  • IBM DS5020 - page 183

    Chapter 6. Hardware maintenance This chapter contains information to help you solve some of the simpler problems that you might have with your storage subsystem. It contains the problem indicators and error messages along with suggested actions to take to resolve the problem. For instructions on how to obtain service and technical assistance for yo ...

  • IBM DS5020 - page 184

    T able 20. Symptom-to-FRU index Problem indicator Component Possible cause Possible solutions Amber LED is lit Drive CRU (Drive Fault LED) Note: The green Drive Activity LED might also be lit. Drive failure Replace the failed drive. Note: The amber LED on the drive is also lit if the drive slot has a blank drive tray inserted. Drive uncertified V e ...

  • IBM DS5020 - page 185

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions Amber LED is lit (continued) Front panel (Global Summary Fault LED) General machine fault A Fault LED is lit somewhere on the storage subsystem (check for Amber LEDs on CRUs). General machine fault (continued) Open the DS5020 Storage Subsystem ...

  • IBM DS5020 - page 186

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions All green LEDs are off All CRUs Subsystem power is off Check that all storage subsystem power cables are plugged in and the power switches are on. If applicable, check that the main circuit breakers for the rack are powered on. AC power failure ...

  • IBM DS5020 - page 187

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions One or more green LEDs are off Power supply CRUs Power cable is unplugged or switches are turned off. Make sure that the power cable is plugged in and that the switches are turned on. All drive CRUs Midplane failure Replace the midplane. Contac ...

  • IBM DS5020 - page 188

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions Intermittent or sporadic power loss to the storage subsystem Some or all CRUs Defective ac power source or improperly connected power cable Check the ac power source. Reseat all installed power cables and power supplies. If applicable, check th ...

  • IBM DS5020 - page 189

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions Unable to access drives Drives and Fibre Channel loop Incorrect storage subsystem ID settings Make sure that the Fibre Channel optical cables are undamaged and properly connected. Check the storage subsystem ID settings. Note: Change the switch ...

  • IBM DS5020 - page 190

    T able 20. Symptom-to-FRU index (continued) Problem indicator Component Possible cause Possible solutions Storage expansion enclosures are not attached to the storage subsystem Storage subsystem The DS5020 does not have the necessary feature options to support the storage expansion enclosures. The base DS5020 storage subsystem supports up to 32 dri ...

  • IBM DS5020 - page 191

    T able 21. Parts listing (DS5020 storage subsystem) Index DS5020 storage subsystem CRU P/N 1 Rail kit 41Y5152 2 Battery 59Y5151 3 Controller , 1 GB memory , two standard 8 Gbps FC host ports, two standard 4 Gbps FC drive channel ports 59Y5251 Controller , 1 GB memory , two standard 8 Gbps FC host ports, one optional 2-port 8 Gbps FC host card, two ...

  • IBM DS5020 - page 192

    T able 21. Parts listing (DS5020 storage subsystem) (continued) Index DS5020 storage subsystem CRU P/N 8 E-DDM, 4 Gbps FC, 146.8 GB, 15,000 RPM drive module 40K6823 E-DDM, 4 Gbps FC, 300 GB, 15,000 RPM drive module 42D0417 E-DDM, 4 Gbps FC, 450 GB, 15,000 RPM drive module 44X2451 E-DDM, 4 Gbps FC, 600 GB, 15,000 RPM drive module 59Y5336 E-DDM, 4 Gb ...

  • IBM DS5020 - page 193

    Appendix A. Records Whenever you add options to your DS5020, be sure to update the information in this appendix. Accurate, up-to-date records make it easier to add other options and provide needed data whenever you contact your IBM technical support representative. Identification numbers Record and retain the following information. Product name: IB ...

  • IBM DS5020 - page 194

    Storage subsystem and controller information record T able 22 provides a data sheet for recording storage subsystem names, management types, Ethernet hardware addresses, and IP addresses. Make a copy of this table and complete the information for your storage subsystems and controllers. Use the information to set up the BOOTP table for the network ...

  • IBM DS5020 - page 195

    Sample information record T able 23 shows a sample information record. This network contains storage subsystems that are managed by using both the direct-management and host-agent-management method. T able 23. Sample information record Storage subsystem name Management method Controllers-Ethernet and IP addresses, and host name Host-IP address and ...

  • IBM DS5020 - page 196

    Installed device records Use the following table to record the number of the hard disk drives that you replaced and the corresponding bay number . Attention: If you replace a hard disk drive in the wrong drive bay it might cause a loss of data. T able 24. Hard disk drive record Bay number Hard disk drive serial number Replaced hard disk drive seria ...

  • IBM DS5020 - page 197

    Appendix B. Rack mounting templates This appendix provides duplicate copies of the rack mounting templates. If you want to tear out the templates from this document, use these copies rather than those provided in “Installing the support rails” on page 32. Use the following templates (Figure 89 on page 168 and Figure 90 on page 169) to identify ...

  • IBM DS5020 - page 198

    Figure 89. Front rack mounting template 168 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 199

    ® 3U 3U 2U 2U 1U 1U 0U 0U Rail assembly (Rear Left) Rail assembly (Rear right) Printed in the U.S.A REAR Rack Mounting T emplate DS5020 Rail mounting guide Figure 90. Rear rack mounting template Appendix B. Rack mounting templates 169 ...

  • IBM DS5020 - page 200

    170 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 201

    Appendix C. Specifications for non-IBM rack installation The following instructions provide safety requirements and rack specifications for installing DS5000 storage subsystems and DS5000 storage expansion enclosures into non-IBM racks. Note: The information in this section applies to 19–inch racks. It is your responsibility , working with your r ...

  • IBM DS5020 - page 202

    3. There must be an accessible and unambiguous disconnect device for each product in the rack, including any power distribution unit. A disconnect device might consist of either the plug on the power cord (if the power cord is no longer than 1.8 m (6 ft.)), the appliance inlet receptacle (if the power cord is of a detachable type), or a power on/of ...

  • IBM DS5020 - page 203

    There must be no unique maintenance procedures or tools required for service. 1 1. Elevated service installations, where the product(s) to be serviced are installed between 1.5 m and 3.7 m (5 ft. and 12 ft.) above the floor , require the availability of an OSHA- and CSA-approved nonconductive step ladder . If a ladder is required for service, the c ...

  • IBM DS5020 - page 204

    T op view of non-IBM rack specifications dimensions The vertical distance between mounting holes must consist of sets of three holes spaced (from bottom to top) 15.9 mm (0.625 in.), 15.9 mm (0.625 in.), and 12.67 mm (0.5 in.) on center (making each three hole set of vertical hole spacing 44.45 mm (1.75 in.) apart on center). The front and rear moun ...

  • IBM DS5020 - page 205

    2. The rack or cabinet must be capable of supporting an average load of 15.9 kg (35 lb.) of product weight per EIA unit. T op F ront of Rack EIA Hole Spacing 6.75 mm min. 15.9 mm 15.9 mm 15.9 mm 15.9 mm 12.7 mm 12.7 mm Hole Diameter = 7.1 +/- 0.1 mm 450 +/- 0.75 mm Rack F ront Opening 465 +/- 0.8 mm Rack Mounting Holes Center-to-Center 6.75 mm min. ...

  • IBM DS5020 - page 206

    For example, a four EIA drawer will have a maximum drawer weight of 63.6 kg (140 lb.). 3. AC or dc power drawers need to be support based on equipment purchased for the rack or cabinet. It is strongly recommended that you use a power distribution unit that meets the same specifications as each unit already installed in the rack. Each power distribu ...

  • IBM DS5020 - page 207

    inlet temperature as specified in the server specifications. The perforations should yield at least 34 percent minimum open area per square inch. Appendix C. Specifications for non-IBM rack installation 177 ...

  • IBM DS5020 - page 208

    178 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 209

    Appendix D. Power cords For your safety , IBM provides a power cord with a grounded attachment plug to use with this IBM product. T o avoid electrical shock, always use the power cord and plug with a properly grounded outlet. IBM power cords used in the United States and Canada are listed by Underwriter’s Laboratories (UL) and certified by the Ca ...

  • IBM DS5020 - page 210

    T able 25. IBM power cords (continued) IBM power cord part number Feature code Description Used in these countries or regions 39Y7917 9820 Power Cord (250v , 10A, 2.8m) Afghanistan, Albania, Algeria, Andorra, Angola, Armenia, Austria, Azerbaijan, Belarus, Belgium, Benin, Bosnia and Herzegovina, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, C ...

  • IBM DS5020 - page 211

    T able 25. IBM power cords (continued) IBM power cord part number Feature code Description Used in these countries or regions 39Y7923 9825 Power Cord (250v , 10A, 2.8m) Abu Dhabi, Bahrain, Botswana, Brunei Darussalam, Channel Islands, Cyprus, Dominica, Gambia, Ghana, Grenada, Guyana, Hong Kong, Iraq, Ireland, Jordan, Kenya, Kuwait, Liberia, Malawi, ...

  • IBM DS5020 - page 212

    182 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 213

    Appendix E. Additional DS5020 documentation For educational information about the DS5020 and other IBM System Storage products, go to http://ibmdsseriestraining.com/. The following tables present an overview of the IBM System Storage DS Storage Manager , storage subsystem, and storage expansion enclosure product libraries, as well as other related ...

  • IBM DS5020 - page 214

    T able 26. DS Storage Manager V ersion 10 titles by user tasks (continued) Title User tasks Planning Hardware installation Software installation Configuration Operation and administration Diagnosis and maintenance IBM System Storage DS Storage Manager Concepts Guide UU U U U U IBM System Storage DS4000 Fibre Channel and Serial A T A Intermix Premiu ...

  • IBM DS5020 - page 215

    DS4800 storage subsystem library T able 28 associates each document in the DS4800 storage subsystem library with its related common user tasks. T able 28. DS4800 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance ...

  • IBM DS5020 - page 216

    DS4700 storage subsystem library T able 29 associates each document in the DS4700 storage subsystem library with its related common user tasks. T able 29. DS4700 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance ...

  • IBM DS5020 - page 217

    DS4500 storage subsystem library T able 30 associates each document in the DS4500 (previously F AStT900) storage subsystem library with its related common user tasks. T able 30. DS4500 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Dia ...

  • IBM DS5020 - page 218

    DS4400 storage subsystem library T able 31 associates each document in the DS4400 (previously F AStT700) storage subsystem library with its related common user tasks. T able 31. DS4400 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Dia ...

  • IBM DS5020 - page 219

    DS4300 storage subsystem library T able 32 associates each document in the DS4300 (previously F AStT600) storage subsystem library with its related common user tasks. T able 32. DS4300 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Dia ...

  • IBM DS5020 - page 220

    DS4200 Express storage subsystem library T able 33 associates each document in the DS4200 Express storage subsystem library with its related common user tasks. T able 33. DS4200 Express storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Di ...

  • IBM DS5020 - page 221

    DS4100 Storage subsystem library T able 34 associates each document in the DS4100 (previously F AStT100) storage subsystem library with its related common user tasks. T able 34. DS4100 storage subsystem document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Dia ...

  • IBM DS5020 - page 222

    DS5000 and DS4000 storage expansion enclosure documents T able 35 associates each of the following documents with its related common user tasks. T able 35. DS5000 and DS4000 storage expansion enclosure document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Diag ...

  • IBM DS5020 - page 223

    Other DS5000 and DS4000-related documents T able 36 associates each of the following documents with its related common user tasks. T able 36. DS5000 and DS4000-related document titles by user tasks Title User T asks Planning Hardware Installation Software Installation Configuration Operation and Administration Diagnosis and Maintenance IBM Safety I ...

  • IBM DS5020 - page 224

    194 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 225

    Appendix F . Accessibility This section provides information about alternate keyboard navigation, which is a DS Storage Manager accessibility feature. Accessibility features help a user who has a physical disability , such as restricted mobility or limited vision, to use software products successfully . By using the alternate keyboard operations th ...

  • IBM DS5020 - page 226

    T able 37. DS Storage Manager alternate keyboard operations (continued) Short cut Action Alt+ underlined letter Access menu items, buttons, and other interface components by using the keys associated with the underlined letters. For the menu options, select the Alt + underlined letter combination to access a main menu, and then select the underline ...

  • IBM DS5020 - page 227

    Notices This information was developed for products and services offered in the U.S.A. IBM may not offer the products, services, or features discussed in this document in other countries. Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or ...

  • IBM DS5020 - page 228

    Adobe and PostScript are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. Cell Broadband Engine is a trademark of Sony Computer Entertainment, Inc., in the United States, other countries, or both and is used under license therefrom. Intel, Intel Xeon, Itanium, and Pentium are trad ...

  • IBM DS5020 - page 229

    Some software might differ from its retail version (if available) and might not include user manuals or all program functionality . Particulate contamination Attention: Airborne particulates (including metal flakes or particles) and reactive gases acting alone or in combination with other environmental factors such as humidity or temperature might ...

  • IBM DS5020 - page 230

    205/A015 3039 E. Cornwallis Road P .O. Box 12195 Research T riangle Park, North Carolina 27709-2195 U.S.A. In the request, be sure to include the publication part number and title. When you send information to IBM, you grant IBM a nonexclusive right to use or distribute the information in any way it believes appropriate without incurring any obliga ...

  • IBM DS5020 - page 231

    European Union EMC Directive conformance statement This product is in conformity with the protection requirements of EU Council Directive 2004/108/EC on the approximation of the laws of the Member States relating to electromagnetic compatibility . IBM cannot accept responsibility for any failure to satisfy the protection requirements resulting from ...

  • IBM DS5020 - page 232

    IBM verändert bzw . wenn Erweiterungskomponenten von Fremdherstellern ohne Empfehlung der IBM gesteckt/eingebaut werden. EN 55022 Klasse A Geräte müssen mit folgendem Warnhinweis versehen werden: “W arnung: Dieses ist eine Einrichtung der Klasse A. Diese Einrichtung kann im Wohnbereich Funk-Störungen verursachen; in diesem Fall kann vom Betre ...

  • IBM DS5020 - page 233

    Glossary This glossary provides definitions for the terminology and abbreviations used in IBM System Storage DS5000 and DS4000 publications. If you do not find the term you are looking for , see the IBM Glossary of Computing T erms located at the following Web site: www .ibm.com/ibm/terminology This glossary also includes terms and definitions from ...

  • IBM DS5020 - page 234

    Standard Architecture (ISA) system bus on the IBM PC A T computer . Equivalent to integrated drive electronics (IDE). auto-volume transfer/auto-disk transfer (A VT/ADT). A function that provides automatic failover in case of controller failure on a storage subsystem. A VT/ADT . See auto-volume transfer/auto-disk transfer . AW T . See Abstract Windo ...

  • IBM DS5020 - page 235

    interface (FC-SCSI) hardware path ID. It is required to be the same for all SCSI targets logically connected to an Fibre Channel adapter . drive channels. The DS4200, DS4700, and DS4800 subsystems use dual-port drive channels that, from the physical point of view , are connected in the same way as two drive loops. However , from the point of view o ...

  • IBM DS5020 - page 236

    Fibre Channel Protocol (FCP) for small computer system interface (SCSI). A high-level fibre-channel mapping layer (FC-4) that uses lower-level fibre-channel (FC-PH) services to transmit SCSI commands, data, and status information between a SCSI initiator and a SCSI target across the FC link by using FC frame and sequence formats. field replaceable ...

  • IBM DS5020 - page 237

    (EISA) further expanded the data path to 32 bits. See also Extended Industry Standard Architecture . initial program load (IPL). The initialization procedure that causes an operating system to commence operation. Also referred to as a system restart, system startup, and boot. integrated circuit (IC). A microelectronic semiconductor device that cons ...

  • IBM DS5020 - page 238

    logical drive data to verify that it can be accessed, and optionally scans the logical drive redundancy information. medium access control (MAC). In local area networks (LANs), the sublayer of the data link control layer that supports medium-dependent functions and uses the services of the physical layer to provide services to the logical link cont ...

  • IBM DS5020 - page 239

    Standard Architecture (EISA) bus. ISA and EISA boards plug into an IA or EISA slot, while high-speed PCI controllers plug into a PCI slot. See also Industry Standard Architecture , Extended Industry Standard Architecture . polling delay . The time in seconds between successive discovery processes during which discovery is inactive. port. A part of ...

  • IBM DS5020 - page 240

    serial A T A. The standard for a high-speed alternative to small computer system interface (SCSI) hard drives. The SA T A-1 standard is equivalent in performance to a 10 000 RPM SCSI drive. serial storage architecture (SSA). An interface specification from IBM in which devices are arranged in a ring topology . SSA, which is compatible with small co ...

  • IBM DS5020 - page 241

    elements must be defined to grant access to host computers and host groups using logical drive-to-LUN mappings. striping. Splitting data to be written into equal blocks and writing blocks simultaneously to separate disk drives. Striping maximizes performance to the disks. Reading the data back is also scheduled in parallel, with a block being read ...

  • IBM DS5020 - page 242

    212 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 243

    Index A a hot-swap E-DDM replacing 130 a hot-swap hard disk drive replacing 130 about this document xix ac power cords and receptacles 24 ac power recovery 23 ac power requirements 23 ac power supply cabling 91 ac power supply and fan unit replacing 43, 139 ac power supply and fan unit, removal 38 ac site wiring requirements 23 accessible documenta ...

  • IBM DS5020 - page 244

    D data sheet 164 devices, installing and replacing 121 DHCP server sample network 1 1 diagnostic interface port 79 direct management method 81 document organization xix documentation DS Storage Manager 183 DS4000-related documents 193 DS4100 SA T A storage subsystem 191 DS4200 Express storage subsystem 190 DS4300 Fibre Channel storage subsystem 189 ...

  • IBM DS5020 - page 245

    Health Check process 93 heat dissipation 21 heat output 24 host adapter , connecting to RAID controller 82 host-agent management method 80 hot swap drive bays 7 drive LED activity described 128 hardware 128 hot-swap E-DDMs installing 128 replacing 44 hot-swap hard disk drives 126 installing 128 replacing 44 hub See managed hub 82 I IBM Safety Infor ...

  • IBM DS5020 - page 246

    power supply and fan units (ac) description 13 power-fan canister recovering from shutdown 1 14 power , restoring after an emergency 1 12 powering off for planned shutdown 109 powering on after planned shutdown 95 after power supply shutdown 1 14 at initial startup 95 problem determination 153 product ID 99 product overview 1 R rack cabinet EIA 310 ...

  • IBM DS5020 - page 247

    storage subsystem configuration saving 6 storage subsystem configuration, installing 91 storage subsystem profile saving 6 submodel ID 99 support code upgrades software and firmware 18 support notifications 5 switch technical support Web site xxv T tasks by document title 183 tasks by documentation title 183 temperature and humidity 20 temperature, ...

  • IBM DS5020 - page 248

    218 IBM System Storage DS5020 Storage Subsystem: Installation, User ’s, and Maintenance Guide ...

  • IBM DS5020 - page 249

    ...

  • IBM DS5020 - page 250

     Part Number: 49Y0289 Printed in USA (1P) P/N: 49Y0289 ...

Manufacturer IBM Category Portable Media Storage

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A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use IBM DS5020 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of IBM DS5020.

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