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Compaq Computer CorporationHouston, TexasCompaq StorageWorksUltraSCSI RAID Enclosure(DS–BA370 Series)User's GuidePart Number: EK–BA370–UG. C02/3

List of Figures x UltraSCSI RAID EnclosureFigure 4–7 Expansion Enclosure Address 3: Shelf and SCSI Bus IDs . . . . . . . . . . . . . . 4–10Figur

Power Verification and Addressing 4–14 UltraSCSI RAID Enclosure 5. Note the enclosure address setting (0, 2, or 3) on the PVA SCSI ID switch (CALL

Power Verification and Addressing UltraSCSI RAID Enclosure 4–15 3. Pull the PVA extractor latches outward. Push the PVA into the slot until the ext

UltraSCSI RAID Enclosure 5–1 5Single-Ended I/O ModuleThe single-ended I/O module (see Figure 5–1) performs two functions:• Provides termination fo

Single-Ended I/O Module 5–2 UltraSCSI RAID Enclosure NoteNot all array controller firmware supports an UltraSCSI RAID subsystem with more than one

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–3 I/O Module and Expansion Cable Error ConditionsRemoval of an I/O module causes the EMU to repo

Single-Ended I/O Module 5–4 UltraSCSI RAID Enclosure Controlling the Internal SCSI BusThe I/O module controls the internal SCSI bus in the followi

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–5 Controlling the Fault BusThe I/O module controls fault bus operation in the following manner:•

Single-Ended I/O Module 5–6 UltraSCSI RAID Enclosure Only when all I/O modules are the same type can an UltraSCSI RAID subsystem function properly

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–7 See Table 5–1 for possible causes of TERMPOWER problems.Removing an I/O module disconnects the

UltraSCSI RAID Enclosure xiList of TablesTable 1–1 UltraSCSI Subsystems Capacities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Single-Ended I/O Module 5–8 UltraSCSI RAID Enclosure CautionThe Compaq UltraSCSI controller does not support connecting or disconnecting a SCSI bu

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–9 Cabling an UltraSCSI SubsystemThis section provides procedures for adding a second and third e

Single-Ended I/O Module 5–10 UltraSCSI RAID Enclosure Shutting Down the SubsystemTo protect the data and devices, complete the procedures in Table

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–11 Table 5–5 Shutting Down the UltraSCSI Subsystem1. Clear the cache module and shut down the ar

Single-Ended I/O Module 5–12 UltraSCSI RAID Enclosure Cabling a Two-Enclosure SubsystemComplete the procedures in Table 5–6 to connect the master

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–13 5. On the master enclosure I/O module, align the Cable A (CALLOUTA) connector with the left c

Single-Ended I/O Module 5–14 UltraSCSI RAID Enclosure 10. On the expansion enclosure shroud, align the module that has Cable A (CALLOUTA) attached

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–15 Turning On the SubsystemComplete the procedures in Table 5–7 to turn ON the subsystem.Table 5

Single-Ended I/O Module 5–16 UltraSCSI RAID Enclosure Cabling a Three-Enclosure SubsystemComplete the procedures in Table 5–8 to connect the maste

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–17 Table 5–8 Installing Three-Enclosure Subsystem Cables1. Complete Table 5–5 to shut down the U

List of Tables xii UltraSCSI RAID EnclosureTable 5–2 UltraSCSI Bus Expansion Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Single-Ended I/O Module 5–18 UltraSCSI RAID Enclosure 7. On the master enclosure shroud, align the module that has Cable A (CALLOUTA) attached wit

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–19 11. Install a wire tie through the holes on the cable support bracket and around the cable. T

Single-Ended I/O Module 5–20 UltraSCSI RAID Enclosure 15. On the second expansion enclosure shroud, align the module that has Cable B (CALLOUTB) a

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–21 Replacing an I/O ModuleComplete the procedure in Table 5–9 to remove an I/O module. Complete

Single-Ended I/O Module 5–22 UltraSCSI RAID Enclosure Table 5–10 Installing an I/O Module1. Verify that the I/O module being installing is a model

Single-Ended I/O Module UltraSCSI RAID Enclosure 5–23 Replacing an Expansion CableComplete the procedure in Table 5–11 to remove an expansion cable

Single-Ended I/O Module 5–24 UltraSCSI RAID Enclosure Table 5–12 Installing an Expansion Cable1. Verify that the expansion cable is the proper typ

UltraSCSI RAID Enclosure 6–1 6Power DistributionThis chapter describes the UltraSCSI RAID enclosure power distribution to include the following:•

Power Distribution 6–2 UltraSCSI RAID Enclosure NoteProper operation of the controller cache modules requires ECBs. Refer to the array controller

Power Distribution UltraSCSI RAID Enclosure 6–3 Three configurations exist:• Standard (n+1)• Redundant (n+4)• Optimum (n+4)Standard (n+1)This confi

UltraSCSI RAID Enclosure xiii PrefaceThe Compaq StorageWorks UltraSCSI RAID Enclosure (DS–BA370 Series) User’s Guide describes the functions, oper

Power Distribution 6–4 UltraSCSI RAID Enclosure AC Input BoxThe ac power distribution is provided through the ac input box (see Figure 6–2) to the

Power Distribution UltraSCSI RAID Enclosure 6–5 Shelf Power SuppliesEach shelf power supply (see Figure 6–3) converts the incoming ac voltage into

Power Distribution 6–6 UltraSCSI RAID Enclosure AC Power BusesAC power distribution to the UltraSCSI shelf power supplies is distributed over two

Power Distribution UltraSCSI RAID Enclosure 6–7 Power Distribution ConfigurationsThis section describes the three power configurations for the Ultr

Power Distribution 6–8 UltraSCSI RAID Enclosure Any one of the following power related error conditions will cause this UltraSCSI RAID enclosure t

Power Distribution UltraSCSI RAID Enclosure 6–9 To implement this configuration from an n+1 configuration, order the following additional component

Power Distribution 6–10 UltraSCSI RAID Enclosure • Failure of the ac power source for bus B and one power supply on bus A• Failure of the ac power

Power Distribution UltraSCSI RAID Enclosure 6–11 The green power supply status LED (CALLOUT 2) is ON when the power supply is operating properly. I

Power Distribution 6–12 UltraSCSI RAID Enclosure Replacing a Power SupplyThis section describes how to properly handle power supply SBBs and the p

Power Distribution UltraSCSI RAID Enclosure 6–13 Procedures for Replacing a Power SupplyThe basic procedure for removing and replacing shelf power

Preface xiv UltraSCSI RAID Enclosure Chapter 4This chapter describes the power verification and addressing (PVA) assembly operation, functions, use

Power Distribution 6–14 UltraSCSI RAID Enclosure 4. If there are no expansion enclosures, go to step 5.If there are expansion enclosures, press an

Power Distribution UltraSCSI RAID Enclosure 6–15 9. Press the two mounting tabs together to release the power supply from the shelf. Using both han

Power Distribution 6–16 UltraSCSI RAID Enclosure 3. Insert the power supply into the guide slots and push it in until the bezel mounting tabs enga

Power Distribution UltraSCSI RAID Enclosure 6–17 Replacing an AC Input BoxComplete the procedure in Table 6–5 to remove an ac input box. Complete t

Power Distribution 6–18 UltraSCSI RAID Enclosure 4. Disconnect the ac power cord (CALLOUT4) from the ac input box (CALLOUT1).5. Loosen the two ret

Power Distribution UltraSCSI RAID Enclosure 6–19 3. Align the ac input box (CALLOUT1) with either slot A or slot B in the lower left or lower right

UltraSCSI RAID Enclosure 7–1 7Storage DevicesThis chapter describes the procedures for handling, addressing, identifying, and replacing disk drive

Storage Devices 7–2 UltraSCSI RAID Enclosure Identifying a Storage DeviceTo determine the model number of a storage device (disk drive SBB), look

Storage Devices UltraSCSI RAID Enclosure 7–3 Figure 7–3 Typical Drive SBB Bezel LabelDisk Drive SBB Device AddressingDetermining the disk drive SBB

Preface UltraSCSI RAID Enclosure xv Documentation ConventionsTable 1 describes the conventions for this publication:Table 1 Documentation Conventio

Storage Devices 7–4 UltraSCSI RAID Enclosure Disk Drive SBB Status ReportingThe array controller monitors the status of the disk drive SBBs. If a

Storage Devices UltraSCSI RAID Enclosure 7–5 See Table 7–1 for definitions of the LED displays.Table 7–1 Disk Drive Status LED DisplaysLED DisplayD

Storage Devices 7–6 UltraSCSI RAID Enclosure Guidelines for Replacing a Disk Drive SBBThis section describes the SBB connector and items to consid

Storage Devices UltraSCSI RAID Enclosure 7–7 Prerequisites for Replacing a Disk Drive SBBReplacing a disk drive SBB is a relatively simple procedur

Storage Devices 7–8 UltraSCSI RAID Enclosure Hot SwapWhen performing a hot swap, power and data are present on the disk drive SBB backplane connec

Storage Devices UltraSCSI RAID Enclosure 7–9 Replacing a Disk Drive SBBThis section describes how to properly handle disk drive SBBs and the proced

Storage Devices 7–10 UltraSCSI RAID Enclosure Procedures for Replacing a Disk Drive SBBComplete the procedure in Table 7–3 to remove a disk drive

Storage Devices UltraSCSI RAID Enclosure 7–11 6. If there are no expansion enclosures, go to step 7.If there are expansion enclosures, turn OFF all

Storage Devices 7–12 UltraSCSI RAID Enclosure Table 7–4 Installing a Disk Drive SBB1. Verify that the disk drive SBB is the correct model and fill

Storage Devices UltraSCSI RAID Enclosure 7–13 6. If performing a cold swap, determine if there are expansion enclosures. If there are no expansion

Preface xvi UltraSCSI RAID Enclosure Related DocumentsTable 2 lists publications that contain additional information about the UltraSCSI RAID subsy

Storage Devices 7–14 UltraSCSI RAID Enclosure 11. Starting at the left end, install all the disk drive SBB devices in shelf 4 (devices 19 through

UltraSCSI RAID Enclosure 8–1 8Enclosure BlowersEnsuring proper UltraSCSI RAID enclosure operation requires establishing and maintaining the proper

Enclosure Blowers 8–2 UltraSCSI RAID Enclosure Figure 8–1 Enclosure Blower Assembly LocationsEnclosure temperature sensors (see Chapter 3) detect

Enclosure Blowers UltraSCSI RAID Enclosure 8–3 • If a blower error condition is caused by only one defective blower per blower bank (see Figure 8–1

Enclosure Blowers 8–4 UltraSCSI RAID Enclosure CautionThe only StorageWorks dual-speed blower that is compatible with this UltraSCSI RAID enclosur

Enclosure Blowers UltraSCSI RAID Enclosure 8–5 CautionOperating an UltraSCSI enclosure with a blower removed significantly changes the air flow pat

Enclosure Blowers 8–6 UltraSCSI RAID Enclosure Table 8–2 Installing a Blower1. Verify that the blower is a model DS–BA35X–MK.2. Orient the replace

UltraSCSI RAID Enclosure A–1 Appendix AUltraSCSI EnclosureSpecificationsThis appendix defines the physical, electrical, and environmental specific

UltraSCSI Enclosure Specifications A–2 UltraSCSI RAID Enclosure NoteThe operating and servicing physical specifications as well as the electrical s

UltraSCSI Enclosure Specifications UltraSCSI RAID Enclosure A–3 Operating EnvironmentsTable A–1, Table A–2, and Table A–3 provide the environmental

Preface UltraSCSI RAID Enclosure xvii Operating System Specific Release NotesSee system-specific “Getting Started” manualImproving UltraSCSI RAID S

UltraSCSI Enclosure Specifications A–4 UltraSCSI RAID Enclosure Table A–3 Shipping EnvironmentCondition SpecificationTemperature –40°C to +66°C (–4

UltraSCSI Enclosure Specifications UltraSCSI RAID Enclosure A–5 SBB Thermal StabilizationFor proper operation upon initial power application, maint

UltraSCSI RAID Enclosure B–1 Appendix BAssembling an UltraSCSIRAID SubsystemAssembling an UltraSCSI RAID subsystem (see Figure B–1) requires seque

Assembling an UltraSCSI RAID Subsystem B–2 UltraSCSI RAID Enclosure Installation SequenceThe basic installation sequence is the same for all UltraS

Assembling an UltraSCSI RAID Subsystem UltraSCSI RAID Enclosure B–3 1. Mount an empty UltraSCSI RAID enclosure in the data center cabinet using cab

Assembling an UltraSCSI RAID Subsystem B–4 UltraSCSI RAID Enclosure Installing the I/O Modules and Expansion CablesSix single-ended I/O modules (DS

Assembling an UltraSCSI RAID Subsystem UltraSCSI RAID Enclosure B–5 Installing Array Controllers and Cache ModulesThe master enclosure contains the

Assembling an UltraSCSI RAID Subsystem B–6 UltraSCSI RAID Enclosure Table B–1 describes the mechanical procedures for installing array controllers

Assembling an UltraSCSI RAID Subsystem UltraSCSI RAID Enclosure B–7 2. Insert the array controller into the Controller A slot and push it in until

Assembling an UltraSCSI RAID Subsystem B–8 UltraSCSI RAID Enclosure 7. If a second array controller and cache module set is required, repeat steps

Assembling an UltraSCSI RAID Subsystem UltraSCSI RAID Enclosure B–9 Installing the Power SystemThe ac input boxes and shelf power supplies comprise

Assembling an UltraSCSI RAID Subsystem B–10 UltraSCSI RAID Enclosure Connecting Subsystem CablesCabinet user documentation describes the cable rout

UltraSCSI RAID Enclosure C–1 Appendix CInstalling EMU MicrocodeThe microcode resident in the EMU memory controls all the UltraSCSI RAID enclosure

Installing EMU Microcode C–2 UltraSCSI RAID Enclosure PrerequisitesThe following items are required to upgrade the EMU microcode using the EMU UART

Installing EMU Microcode UltraSCSI RAID Enclosure C–3 5. Use the PROCOMM PLUS Setup Utility to establish the following parameters for modem and pro

Installing EMU Microcode C–4 UltraSCSI RAID Enclosure Preparing the EMUComplete the procedure in Table C–2 to prepare the EMU for loading the micro

Installing EMU Microcode UltraSCSI RAID Enclosure C–5 Table C–4 Typical PC Monitor DisplayDisplay Text CommentsSW 370 EMU (ROM) Version V01.02Copyr

Installing EMU Microcode C–6 UltraSCSI RAID Enclosure Restarting the ControllerComplete the procedure in Table C–5 to restart the controller after

UltraSCSI RAID Enclosure Glossary–1 GlossaryThis glossary defines terms pertaining to the DS-BA370 series UltraSCSI RAID enclosure. It is not a co

UltraSCSI RAID Enclosure xix Manufacturer’s DeclarationsThis section discusses electromagnetic compatibility and accoustic noise declarations.Elec

Glossary Glossary–2 UltraSCSI RAID Enclosure ambient air temperatureThe temperature of the air surrounding the cabinet, enclosure, shelf, or SBB t

Glossary UltraSCSI RAID Enclosure Glossary–3 CautionThe device transceiver type (single-ended or differential) must match the bus segment type. Dev

Glossary Glossary–4 UltraSCSI RAID Enclosure certified deviceA storage device tested in a specific configuration and found to be in compliance wit

Glossary UltraSCSI RAID Enclosure Glossary–5 converterSee SCSI bus signal converter.data center cabinetThe largest of the StorageWorks cabinets, su

Glossary Glossary–6 UltraSCSI RAID Enclosure ECBExternal cache battery. A device that provides backup power to a cache module for sustaining memor

Glossary UltraSCSI RAID Enclosure Glossary–7 expansion enclosureAn UltraSCSI RAID enclosure connected to the master enclosure with UltraSCSI bus ca

Glossary Glossary–8 UltraSCSI RAID Enclosure Federal Communications CommissionSee FCC.filler panelA panel used to cover open unused areas in cabin

Glossary UltraSCSI RAID Enclosure Glossary–9 HSOFHierarchical Storage Operating Firmware. HS-family controller software contained on a removable RO

Glossary Glossary–10 UltraSCSI RAID Enclosure master enclosureThe UltraSCSI RAID enclosure that includes the HSZ series controllers and cache modu

Glossary UltraSCSI RAID Enclosure Glossary–11 physical busTwo SCSI terminators separated by cables, connectors, and backplane circuitry.port(1) A l

September 1998While Compaq Computer Corporation believes the information included in this publication is correct as of the date of publication, i

Manufacturer’s Declarations xx UltraSCSI RAID Enclosure Acoustic Noise DeclarationsCompaq® declares that the acoustic values of this product are as

Glossary Glossary–12 UltraSCSI RAID Enclosure redundant power supply configurationA capability of StorageWorks cabinet and shelves to ensure that

Glossary UltraSCSI RAID Enclosure Glossary–13 SCSI deviceA host computer adapter, a peripheral array controller or an intelligent peripheral that c

Glossary Glossary–14 UltraSCSI RAID Enclosure See also spin-up.spin-upA process that begins when power is applied to a storage device, and ends wh

Glossary UltraSCSI RAID Enclosure Glossary–15 StorageWorks building blockSee SBB.supported device(1) A device that has been fully evaluated in an “

Glossary Glossary–16 UltraSCSI RAID Enclosure See also STERMPOWER.topologyThe physical arrangement and relationship of interconnected nodes and SC

Glossary UltraSCSI RAID Enclosure Glossary–17 UltraSCSI RAID subsystemOne or more UltraSCSI RAID enclosures mounted in either a pedestal or a cabin

Manufacturer’s Declarations UltraSCSI RAID Enclosure xxi Table 2Schallemissionswerte – Werteangaben nach ISO 9296 und ISO 7779/DIN EN27779GerätScha

UltraSCSI RAID Enclosure 1–1 1Introducing the UltraSCSIRAID EnclosureThe Compaq StorageWorks™ UltraSCSI RAID (redundant array of independent disks

Introducing the UltraSCSI RAID Enclosure 1–2 UltraSCSI RAID Enclosure This enclosure cannot function until:1. It is installed in an UltraSCSI data

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–3 Figure 1–2 Typical DS–BA370 Applications010010010010010010CXO6264A

Introducing the UltraSCSI RAID Enclosure 1–4 UltraSCSI RAID Enclosure An UltraSCSI Bus OverviewUltraSCSI was developed by Digital Equipment Corpor

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–5 Product DescriptionThe UltraSCSI enclosure is a rack-mountable storage subsys

Introducing the UltraSCSI RAID Enclosure 1–6 UltraSCSI RAID Enclosure Expansion enclosures have filler panels installed in the controller and cach

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–7 •EMU•PVA• UltraSCSI bus array controllers and cache modules• Disk drives• I/O

UltraSCSI RAID Enclosure iiiTable of ContentsPreface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introducing the UltraSCSI RAID Enclosure 1–8 UltraSCSI RAID Enclosure PVAEach PVA functions only with its host enclosure and EMU. There is no mast

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–9 2 — Establishing SCSI bus device addresses 8, 9, 10, and 113 — Establishing S

Introducing the UltraSCSI RAID Enclosure 1–10 UltraSCSI RAID Enclosure NoteDS–HSx70 series array controllers require DS–HSx70 series cache modules

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–11 OptionsThe following sections describe the UltraSCSI RAID subsystem user sel

Introducing the UltraSCSI RAID Enclosure 1–12 UltraSCSI RAID Enclosure Redundant Power Supply ConfigurationAdding three power supplies and a secon

Introducing the UltraSCSI RAID Enclosure UltraSCSI RAID Enclosure 1–13 Compaq recommends using this configuration to eliminate all single points of

UltraSCSI RAID Enclosure 2–1 2Operating the UltraSCSIEnclosureSetting up an UltraSCSI RAID subsystem for operation involves implementing the proce

Operating the UltraSCSI Enclosure 2–2 UltraSCSI RAID Enclosure • The following devices use a SCSI bus address (ID) and are SCSI bus nodes:— Adapte

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–3 • Compaq UltraSCSI array controllers support FAST 10 (20 MB/s) 16-bit (wide) disk dr

Table of Contents iv UltraSCSI RAID EnclosureChapter 2, Operating the UltraSCSI EnclosureUltraSCSI Configuration Rules . . . . . . . . . . . . . . .

Operating the UltraSCSI Enclosure 2–4 UltraSCSI RAID Enclosure UltraSCSI EnclosuresThe following configuration rules apply to UltraSCSI RAID subsy

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–5 See Table 2–1 for the Compaq-supported PVA SCSI ID switch settings.Starting the Subs

Operating the UltraSCSI Enclosure 2–6 UltraSCSI RAID Enclosure Applying PowerInitial power application is a matter of turning on the ac input boxe

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–7 Turning On the SubsystemAfter completing subsystem assembly, expansion, or movement

Operating the UltraSCSI Enclosure 2–8 UltraSCSI RAID Enclosure Shutting Down the SubsystemShutting down the subsystem involves:• Clearing the cach

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–9 Using Standby Power ModeComplete the procedure in Table 2–3 to turn OFF the dc power

Operating the UltraSCSI Enclosure 2–10 UltraSCSI RAID Enclosure Turning Off the SubsystemAdding enclosures or moving the subsystem might require r

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–11 Table 2–5 Turning Off the Subsystem Power1. Clear the cache module and shut down th

Operating the UltraSCSI Enclosure 2–12 UltraSCSI RAID Enclosure Fault DetectionFault detection involves identifying errors and providing an indica

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–13 For a detailed description of status LEDs, and specific error conditions, see the a

Table of Contents UltraSCSI RAID Enclosure v Maintenance Terminal Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating the UltraSCSI Enclosure 2–14 UltraSCSI RAID Enclosure CALLOUT 1 is the system OK LED and is green. Callout 2 is the system fault L

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–15 Table 2–7 Enclosure Status LED DisplaysEnclosure TypeDescription and Possible Corre

Operating the UltraSCSI Enclosure 2–16 UltraSCSI RAID Enclosure SBB Shelf Status IndicatorsSBB shelf status indicators are provided by shelf power

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–17 Removal of a disk drive SBB device is automatically sensed by the array controller.

Operating the UltraSCSI Enclosure 2–18 UltraSCSI RAID Enclosure Controller Shelf Status IndicatorsController shelf status indicators are provided

Operating the UltraSCSI Enclosure UltraSCSI RAID Enclosure 2–19 EMU Status LEDsThe EMU status LEDs (see Figure 2–8) have multiple functions (see Ch

Operating the UltraSCSI Enclosure 2–20 UltraSCSI RAID Enclosure I/O Module LEDsEach I/O module (see Figure 2–10) has two green status LEDs that di

UltraSCSI RAID Enclosure 3–1 3Environmental MonitoringUnitThe primary function of the EMU (Figure 3–1) is to monitor, process, report, and display

Environmental Monitoring Unit 3–2 UltraSCSI RAID Enclosure Product DescriptionThe EMU detects enclosure error conditions and configuration faults,

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–3 CautionSome array controllers bypass the standby power mode functionality from the PVA s

Table of Contents vi UltraSCSI RAID EnclosureError Reporting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Environmental Monitoring Unit 3–4 UltraSCSI RAID Enclosure I/O Module StatusThe EMU verifies that the six I/O modules are present, properly instal

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–5 EMU Front PanelThe EMU user interface controls, connectors, and LED displays are on the

Environmental Monitoring Unit 3–6 UltraSCSI RAID Enclosure Temperature Fault LEDIf either the intake or exhaust air temperature exceeds user-defin

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–7 Configuring the EMUConfiguring the EMU requires connecting the EMU-EMU communications bu

Environmental Monitoring Unit 3–8 UltraSCSI RAID Enclosure EMU FirmwareEMU firmware allows the user to use CLI commands to establish limits for EM

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–9 CautionFor EMU firmware versions 1.0 and 1.1, the command set emu sensor_n_setpoint=defa

Environmental Monitoring Unit 3–10 UltraSCSI RAID Enclosure NoteDefault temperature settings for EMU firmware version 1.2 are:• Sensors 1 and 2 —

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–11 NoteFor detailed instructions about using the set emu commands, refer to the array cont

Environmental Monitoring Unit 3–12 UltraSCSI RAID Enclosure Setting the Blower Speed ControlUltraSCSI enclosure blowers normally operate at low-sp

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–13 NoteFor detailed instructions about using the set emu commands, refer to the array cont

Table of Contents UltraSCSI RAID Enclosure vii Guidelines for Replacing a Disk Drive SBB . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Environmental Monitoring Unit 3–14 UltraSCSI RAID Enclosure • Starts the EMU timer if: (1) all blowers in a shelf bank are defective, or (2) a blo

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–15 •Fault conditions—involves a subsystem configuration problem, such as a Boot ROM checks

Environmental Monitoring Unit 3–16 UltraSCSI RAID Enclosure • The error condition still exists after 1 hour has passed. This situation causes the

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–17 Monitoring Power Supply OperationsEven with four operational power supplies, it is poss

Environmental Monitoring Unit 3–18 UltraSCSI RAID Enclosure Error Condition ReportingEMU status LEDs identify system (enclosure) status, power sta

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–19 Nonoperational EnclosureProbable Cause 1—Either +5 V dc or 12 V dc out of range. Observ

Environmental Monitoring Unit 3–20 UltraSCSI RAID Enclosure Configuration Error (Example 1)Probable Cause 1—Configuration error. See the Configura

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–21 Configuration Fault Code ReportingThe system fault, temperature, power, and blower LEDs

Environmental Monitoring Unit 3–22 UltraSCSI RAID Enclosure Each time the alarm control switch is momentarily pressed, the EMU initiates the follo

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–23 Fault Code 02Both microcode images are bad.1. Load microcode image into the EMU from a

Table of Contents viii UltraSCSI RAID EnclosureLoading the Microcode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Environmental Monitoring Unit 3–24 UltraSCSI RAID Enclosure Fault Code 04Master EMU cannot communicate with expansion EMU.1. Ensure PVA SCSI ID sw

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–25 Fault Code 07Invalid configuration.Requires an array controller-specific action (see th

Environmental Monitoring Unit 3–26 UltraSCSI RAID Enclosure Fault Code 0ANo PVA is installed.Install a PVA.Fault Code 0BController fault.Requires

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–27 Fault Code 0EEMU memory test failed.Replace the EMU.Fault Code 0FLess than four operati

Environmental Monitoring Unit 3–28 UltraSCSI RAID Enclosure Replacing an EMUComplete the procedure in Table 3–9 to remove an EMU and complete the

Environmental Monitoring Unit UltraSCSI RAID Enclosure 3–29 6. Pull the EMU extractor latches outward and remove the EMU.Table 3–10 Installing an E

Environmental Monitoring Unit 3–30 UltraSCSI RAID Enclosure 3. Pull the EMU extractor latches outward. Push the EMU into the slot until the extrac

UltraSCSI RAID Enclosure 4–1 4Power Verification andAddressingAn enclosure’s PVA assembly (see Figure 4–1) and associated EMU monitors the status

Power Verification and Addressing 4–2 UltraSCSI RAID Enclosure The PVA and EMU mount next to each other in the enclosure—the EMU (CALLOUT 1) is on

Power Verification and Addressing UltraSCSI RAID Enclosure 4–3 The PVA has two status indicators:• A green power status LED that is part of the sta

UltraSCSI RAID Enclosure ixList of FiguresFigure 1–1 DS–BA370 Series UltraSCSI Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Verification and Addressing 4–4 UltraSCSI RAID Enclosure This action—removing power from the enclosure—duplicates an EMU function and ensure

Power Verification and Addressing UltraSCSI RAID Enclosure 4–5 Figure 4–4 Master Enclosure Device IDsUse the PVA SCSI ID switch to establish SCSI b

Power Verification and Addressing 4–6 UltraSCSI RAID Enclosure Monitoring Power Supply OperationsEven with four operational power supplies, it is

Power Verification and Addressing UltraSCSI RAID Enclosure 4–7 Setting the Enclosure AddressThe PVA SCSI ID switch establishes the SCSI bus address

Power Verification and Addressing 4–8 UltraSCSI RAID Enclosure Master Enclosure AddressThe master enclosure PVA SCSI ID switch setting is always 0

Power Verification and Addressing UltraSCSI RAID Enclosure 4–9 Expansion Enclosure AddressesCompaq supports only PVA SCSI ID switch settings of 2 (

Power Verification and Addressing 4–10 UltraSCSI RAID Enclosure Figure 4–7 Expansion Enclosure Address 3: Shelf and SCSI Bus IDsImplementing the S

Power Verification and Addressing UltraSCSI RAID Enclosure 4–11 Table 4–4 Turning Off the DC Power Distribution1. Clear the cache module and shut d

Power Verification and Addressing 4–12 UltraSCSI RAID Enclosure Replacing a PVAComplete the procedures in Table 4–6 to remove a PVA. Complete the

Power Verification and Addressing UltraSCSI RAID Enclosure 4–13 2. If there are no expansion enclosures, go to step 3.If there are expansion enclos