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Bull DPX/20 Installing And Maintaining

150 disk-array storage system
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014-002518-03
Bull DPX/20
Installing and Maintaining a
150 Disk-Array Storage System
ORDER REFERENCE
86 A1 12GX 01

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  • Page 1 014-002518-03 Bull DPX/20 Installing and Maintaining a 150 Disk-Array Storage System ORDER REFERENCE 86 A1 12GX 01...
  • Page 3 Bull DPX/20 Installing and Maintaining a 150 Disk-Array Storage System Hardware June 1996 Bull Electronics Angers S.A. CEDOC Atelier de Reprographie 331 Avenue Patton 49 004 ANGERS CEDEX 01 FRANCE ORDER REFERENCE 86 A1 12GX 01...
  • Page 4 Series 100 Disk-Array Storage System”, Data General Corporation. The information in this document is subject to change without notice. Groupe Bull will not be liable for errors contained herein, or for incidental or consequential damages in connection with the use of this material.
  • Page 5 Preface This manual explains how to install the DAS 150 disk-array storage system and how to replace and/or install customer-replaceable units (CRUs). It is for technical services personnel who want to install and maintain the storage system. It assumes familiarity with the computer, called the server, to which the storage system will be connected.
  • Page 6 Installing and Maintaining a DAS 150...

  • Page 7: Table Of Contents

    Contents About the storage system ..........1–1 Storage-system components .
  • Page 8 Removing a disk module ....... . 4–4 Installing a disk module .

  • Page 9: About The Storage System

    About the storage system This chapter introduces the DAS 150 disk-array storage system. It describes the hardware components that make up the storage system and the different ways to connect the storage system to a computer, called a server. The DAS 150 storage system provides a compact, high-capacity, high-availability source of disk storage for the server at a low cost.

  • Page 10: Scsi-2 Adapter

    Only service personnel authorized to open the server cabinet should install or replace SCSI-2 adapters. The SP, write-cache memory card and its battery, disk modules, fan modules, and VSCs are customer-replaceable units (CRUs), which you can install or replace yourself. The following figure shows the location of the storage system’s CRUs, which also include the customer-replaceable SCSI bus cables, SCSI terminator plug, power cord, and the optional asynchronous (console) cable.

  • Page 11: Write-Cache Memory Card

    The SP consists of a printed-circuit board with two memory modules (SIMMs) and a bezel with the two SCSI bus connectors, SP SCSI ID switch, status light, asynchronous console connector, a slot for the write-cache memory card, and latches to secure the SP in place. The SP is visible from the rear of the storage system. The memory modules provide either 8 or 32 Mbytes of SP memory.

  • Page 12: Disk-Drive Modules

    Disk-drive modules Disk-drive module’s label Ready light (green) Busy light (green) Fault light (amber) A disk-drive module, also called a disk module, consists of a disk drive, a power regulator board, internal cabling, and a plastic carrier. The carrier has a handle and guides for inserting and holding the module in the storage system’s chassis.

  • Page 13: Fan Modules

    The VSCs are visible when you remove the storage system’s front panel. The system power and system service lights are visible through a cutout in the front panel. Four status lights on the VSC indicate the following: System power light — Lights if the components in the storage system are powered System service light —...

  • Page 14: Connection To The Server

    Connection to the server The storage system connects to a server through a wide SCSI-2 differential bus. This SCSI-2 bus connection allows the server to communicate with the disks in the storage system, and also lets you administer, configure, or monitor the storage system using the ArrayGUIde™...

  • Page 15: Factory Configuration

    Factory configuration To make installation simpler, the storage systems are configured at the factory as follows: The SP SCSI ID is 0. Drives are installed in consecutive slots from the top of the chassis downward. For example, if the storage system has five drives, they are in the top five slots (A0, B0, A1, B1, A2).
  • Page 16 1–8 Installing and Maintaining a DAS 150...

  • Page 17: Installing A Single Storage System On A Scsi Bus

    Installing a single storage system on a SCSI bus Read this chapter if you are installing only one storage system on a SCSI bus in a basic configuration. If you are installing two or more storage systems on the same SCSI bus, skip to Chapter 3.

  • Page 18: Sp's Scsi-2 Bus Connectors

    SP’s SCSI-2 bus connectors Back view SCSI bus in SCSI bus out The SCSI-2 bus in and out connectors are on the SP’s bezel, which is accessible from the back of the storage system. Connecting the SCSI-bus cable for the storage system 1.

  • Page 19: Setting The Scsi Id For The Sp

    Basic configuration Dual-initiator configuration Cabling a single storage system to a SCSI bus Cabling a single storage system to a SCSI bus Connect to first server’s Connect to server’s SCSI-2 adapter or SCSI-2 adapter or to single-ended-to- to single-ended-to- differential converter differential converter SCSI terminator plug Connect to second...
  • Page 20 SP SCSI ID switch SCSI ID Switch number number Note: Some operating systems support only SCSI IDs 0 through 7. What you do next depends on what software you will use to administer the storage system. If you will use the ArrayGUIde utility — Skip to the “Connecting the power cord” section.

  • Page 21: Connecting The Asynchronous (Console) Cable

    Connecting the asynchronous (console) cable To bind disk modules into physical disk units, set up storage-system caching, and monitor storage-system operation using dassmgr, you must connect the console port on the SP to an asynchronous port on the server. If you are installing a dual-initiator configuration, you can connect the console port to only one server.
  • Page 22 2. If the server has a 9-pin male connector for the RS-232 port, attach the adapter cable’s 9-pin connector into the server’s RS-232 connector. Attaching an adapter cable Server’s RS-232 connector 3. Attach the male end of the asynchronous (console) cable to either the server’s RS-232 connector or the 25-pin connector on the adapter cable.

  • Page 23: Connecting The Ac Power Cord

    Connecting the ac power cord 1. Make sure that the storage system’s power switch is off, and then connect the power cord to the storage system. 2. Plug the other end of the power cord into an ac power outlet. Plugging in the ac power cord Back view .

  • Page 24: What Next

    What next What you do next depends on whether you want to use the storage system as configured at the factory or use a custom configuration. To use the factory configuration — All you need to do is to make the LUN(s) in the storage system available to the server’s operating system, as described in the manual for configuring and managing the storage system.

  • Page 25: Installing Multiple Storage Systems On A Scsi Bus

    Installing multiple storage systems on a SCSI bus Read this chapter if you are either installing two or more storage systems on the same SCSI bus. The procedures in this chapter assume the following: The installation site meets the ac power requirements and operating limits listed in Appendix A.

  • Page 26: Sp's Scsi-2 Bus Connectors

    Lengths of the SCSI-bus cables between the storage systems. For a storage system connected to two servers on the same bus Lengths of each server’s internal SCSI bus (refer to the documentation for the server). Lengths of the SCSI bus cable between each server and the system. If you are using a single-ended-to-differential SCSI bus converter between the server and the storage system, you must include the lengths of the cables between the server and the converter and the converter and the storage system.
  • Page 27 6. Connect the last storage system on the SCSI bus by plugging one end of the SCSI bus cable into the SCSI bus out connector on ( ) the back of previous storage system on the bus and plugging the other end into the SCSI bus in connector ( ) on the back of the storage system you are connecting.
  • Page 28 Basic configuration Cabling multiple storage systems to a SCSI bus First storage Middle storage Last storage system system(s) system SCSI terminator plug Connect to server’s SCSI-2 adapter or to single-ended-to- differential converter Dual-initiator configuration Cabling multiple storage systems to a SCSI bus First storage Middle storage Last storage...

  • Page 29: Setting The Scsi Id For The Sp

    Setting the SCSI ID for the SP The SP requires a unique SCSI ID number, that is, a number that is not used by any other device on the bus. The rotary switch on the SP’s bezel sets the SCSI ID for the SP.

  • Page 30: Connecting The Asynchronous (Console) Cable

    Connecting the asynchronous (console) cable To bind disk modules into physical disk units, set up storage-system caching, and monitor storage-system operation using dassmgr, you must connect the console port on the SP to either an asynchronous port on the server. If you are installing a dual-initiator configuration, you can connect the console port to only one server.
  • Page 31 2. If the server has a 9-pin male connector for the RS-232 port, attach the adapter cable’s 9-pin connector into the server’s RS-232 connector. Attaching an adapter cable Server’s RS-232 connector 3. Attach the male end of the asynchronous (console) cable to either the server’s RS-232 connector or the 25-pin connector on the adapter cable.

  • Page 32: Connecting The Ac Power Cord

    Connecting the ac power cord 1. Make sure that the storage system’s power switch is off, and then connect the power cord to the storage system. 2. Plug the other end of the power cord into an ac power outlet. Plugging in the ac power cord Back view .

  • Page 33: What Next

    What next Use ArrayGUIde or dassmgr to reconfigure the storage system as described in the following manuals: Using the ArrayGUIde utility — Refer to the manual on using the ArrayGUIde utility, which ships with the storage system hardware. Using dassmgr — Refer to the manual for configuring and managing the storage system, which ships with the storage system hardware.
  • Page 34 3–10 Installing and Maintaining a DAS 150...

  • Page 35: Upgrading And Repairing A Storage System

    Upgrading and repairing a storage system You upgrade a storage system by adding optional modules that are customer-replaceable units (CRUs). You repair a storage system by replacing faulty CRUs. You can add or replace the following CRUs while the storage system is powered up: Disk modules Voltage semi-regulated converters (VSCs)

  • Page 36: Handling Crus

    Handling CRUs This section describes the precautions that you must take and the general procedures you must follow when removing, installing, and storing CRUs. Avoiding electrostatic discharge (ESD) damage The cover(s) and filler panel(s) installed on the equipment protect the electronic circuits inside the equipment from electrostatic discharge (ESD) damage.

  • Page 37: Precautions When Removing, Installing, Or Storing Crus

    CAUTION These procedures are not a substitute for the use of an ESD kit. Follow them only in the event of an emergency. Before touching any electronic circuits or boards inside the equipment, firmly touch a bare (unpainted) metal surface of the equipment. Before removing any replacement or upgrade subassembly from its antistatic bag, place one hand firmly on an unpainted metal surface of the chassis, and at the same time, pick up the replacement or upgrade subassembly while it is still sealed...

  • Page 38: Replacing Or Adding A Disk Module

    Replacing or adding a disk module If you are replacing a failed module, start with the next section, “Removing a disk module.” If you are adding an optional module, skip to the “Installing a disk module” section (page 4–6). Removing a disk module You can replace a failed disk module while the storage system is powered up.
  • Page 39 3. Remove the disk module as shown below. Removing a disk module . Grasp disk module by handle and pull it part way out of chassis. ESD wristband . Support drive with free hand and pull it out of chassis. CAUTION: When removed from the chassis, the disk modules are extremely sensitive to shock and...

  • Page 40: Installing A Disk Module

    Installing a disk module You can install a replacement or an add-on disk module without powering down the storage system. CAUTION Before installing a replacement module, wait at least 15 seconds after removing the failed module to allow the SP time to recognize that the module has been removed. If you insert the replacement module too soon, the SP may report the replacement module as defective.

  • Page 41: Removing Or Installing A Disk Filler Module

    Removing or installing a disk filler module When the storage system has an empty disk module slot, you must install a disk filler module to maintain the proper cooling air flow and to suppress the transmission of electromagnetic waves that could otherwise interfere with radio and communications equipment located nearby.

  • Page 42: Replacing The Sp

    Replacing the SP You should remove the SP only when you need to replace it or when you want to upgrade its memory modules with larger capacity modules. Removing the SP 1. Shut down the operating system on the server. 2.

  • Page 43: Installing The Sp

    Installing the SP 1. Make sure the server’s operating system is shut down and the storage system is powered down. 2. Attach the clip of the ESD wristband (strap) to the inner chassis of the storage system (page 4–4), and put the wristband around your wrist with the metal button against your skin.

  • Page 44: Removing Or Installing Sp Memory Modules

    5. Install the SP in the chassis as shown below. Inserting the SP in the chassis . Engage edges of SP in board guides, and slide SP into chassis until ejectors engage with chassis edge. . Press both ejectors at same time until they lock and the SP moves further into chassis.

  • Page 45: Removing Sp Memory Modules

    Location of memory modules on SP printed-circuit board Memory module in SIMM 2 connector Memory module in SIMM 1 connector SP board Removing SP memory modules You must not ship an SP with the memory modules installed on its printed-circuit board.
  • Page 46 2. Attach the clip of the ESD wristband (strap) to the inner chassis of the storage system (page 4–4), and put the wristband around your wrist with the metal button against your skin. 3. If you are upgrading the SP with higher capacity memory modules, remove the SP you are upgrading (page 4–8), place it on a static-free work surface, and remove its memory modules (page 4–11).

  • Page 47: Replacing Or Adding The Write-Cache Memory Card

    Replacing or adding the write-cache memory card You should replace the write-cache memory card if it failed with a POST FAILED error. You can check the card’s state using either the ArrayGUIde utility or dassmgr. The ArrayGUIde utility is described in the ArrayGUIde manual, and dassmgr is described in the manual on configuring and managing the storage system.

  • Page 48: Installing The Write-Cache Memory Card

    6. Remove and store the ESD wristband. If you are replacing the card — Continue to the next section, “Installing the write-cache memory card” to install the replacement card. If you removed the card to replace the battery — Skip to the “Installing the battery”...

  • Page 49: Installing Or Replacing The Write-Cache Memory Card Battery

    If you added the card — You need to set up storage-system caching using either the ArrayGUIde utility or dassmgr. The ArrayGUIde utility is described in the ArrayGUIde manual, and dassmgr is described in the manual on configuring and managing the storage system. Installing or replacing the write-cache memory card battery If you are installing the battery in a replacement or add-on write-memory cache card, continue to the next section, “Installing the battery.”...

  • Page 50: Replacing The Battery

    5. Turn the card over, and install the battery in the card as shown below. Installing the battery in the write-cache memory card . Remove battery holder Battery and battery from box. Battery holder B. Hold battery holder with screw on right, and insert battery with plus (+) side Screw up into holder.
  • Page 51 5. Remove the battery from the card as shown below. Removing battery from write-cache memory card A. Hold card so side with words WRITE Screw PROTECT is down. B Loosen screw using triangular tool. C. Pull battery holder out of card. Battery holder Battery .
  • Page 52 7. Turn the card over and make sure that it is write-enabled, as shown below. Write-enabling the write-cache memory card Write-protect switch in write-enable position 8. Reinstall the card in the SP (page 4–14). 9. Remove and store the ESD wristband. 10.

  • Page 53: Replacing A Vsc

    Replacing a VSC You can replace a failed VSC while the storage system is powered up, but you should not remove it until you have a replacement VSC available. CAUTION To maintain proper cooling, never operate the storage system with an empty VSC slot.
  • Page 54 5. Remove the failed VSC as shown below. Removing a VSC Latch A. Grasp VSC by handle, and hold in latch with thumb. B. Pull VSC out of chassis. 6. Install the replacement VSC as shown below. Installing a VSC A.

  • Page 55: Replacing A Fan Module

    Replacing a fan module You can replace a failed fan module while the storage system is powered up. " To replace the fan module 1. Unpack the replacement fan and place it within reach of the storage system. 2. Locate the fan that you want to remove (page 4–1). 3.
  • Page 56 End of Chapter 4–22 Installing and Maintaining a DAS 150...

  • Page 57: Technical Specifications

    Technical specifications This appendix lists the technical specifications for the 7-slot storage system. AC power requirements Voltage 90 V ac to 264 V ac, single-phase, 47 Hz to 63 Hz Current draw 3.0 A max. at 100 V ac input Power consumption Apparent power 300 VA max...
  • Page 58 Physical Dimensions Height 49.5 cm (19.5 in) Width 17.8 cm (7.0 in) Depth 45.7 cm (18.0 in) Weight Minimum (chassis, 3 disk modules, 1 SP, 2 VSCs, 3 fan modules without packaging) — 23.1 kg (57.5 lb) Maximum (chassis, 7 disk modules, 1 SP, 2 VSCs, 3 fan modules without packaging) —...

  • Page 59: Spare Parts For Das 150

    Spare parts for DAS 150 This appendix lists the available spare parts for the DAS 150 storage system. Bull Part Number Description DGC005–042215 Fan module DGC005–042077 Power supply DGC005–041958 Storage Processor DGC005–043225 Storage Processor with write cache DGC116–007158 Kit PCMCIA board DGC005–042318...
  • Page 60 Installing and Maintaining a DAS 150...

  • Page 61: Index

    Index disk module adding, 4–6 ac power, current draw, 4-1 description, 1–4 adapter cable, using, 2-6, 3-7 installing, 4–6 adapters removing, 4–4 replacing, 4–4 cable, using, 2–6, 3–7 fan module gender changer, using, 2–5, 3–6 description, 1–5 adding disk modules, 4-6 installing, 4–21 asynchronous cable removing, 4–21...
  • Page 62 filler module SP, 4–9 installing, 4–7 storage system. See setting up removing, 4–7 VSC, 4–19 installing, 4–6 write–cache memory card, 4–14 removing, 4–4 replacing, 4–4 status lights busy, 1–4 labels, attaching, 2-1, 3-1 fault, 1–4 lights, system power, 2-7, 3-8 ready, 1–4 lights on disk-array storage system.
  • Page 63 SP, 4–8 SCSI ID for VSC, 4–19 dual–server configuration, 3–5 write–cache memory card, 4–13 multiple storage systems on bus, 3–5 repair under power single storage system on bus, 2–3 write–cache memory card disk modules, 1–4 adding, 4–13 fan module, 1–5 battery VSC, 1–4 disposing of, 4–18...
  • Page 64 VSC (voltage semi-regulated converter) SCSI IDs for dual–server configuration, 3–5 description, 1–4 multiple storage systems on bus, 3–5 installing, 4–19 single storage system on bus, 2–3 removing, 4–19 system power light, 4–1 replacing, 4–19 system service light, 4–1 status lights technical specifications, 4–1 fan fault, 1–5 weight, 4–2...
  • Page 65 SOCIETE / COMPANY : ADRESSE / ADDRESS : Remettez cet imprimé à un responsable BULL ou envoyez-le directement à : Please give this technical publication remark form to your BULL representative or mail to: Bull Electronics Angers S.A. CEDOC Atelier de Reprographie...
  • Page 68 Bull Electronics Angers S.A. CEDOC Atelier de Reprographie 331 Avenue Patton 49 004 ANGERS CEDEX 01 FRANCE ORDER REFERENCE 86 A1 12GX 01...
  • Page 69 Utiliser les marques de découpe pour obtenir les étiquettes. Use the cut marks to get the labels. DPX/20 Installing and Maintaining a 150 Disk-Array Storage System 86 A1 12GX 01 DPX/20 Installing and Maintaining a 150 Disk-Array Storage System 86 A1 12GX 01...

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