Compaq StorageWorks 4100 - RAID Array Betriebsanweisung

RAID Array 4100User GuideSecond Edition (January 2000)Part Number 146297-002Compaq Computer Corporation

About This Guide xSymbols in TextThese symbols may be found in the text of this guide. They have the followingmeanings.WARNING: Text set off in this

Running the Array Configuration Utility 5-27Error and Warning MessagesWhen you start the Array Configuration Utility, the software checks eachcontro

5-28 Compaq StorageWorks RAID Array 4100 User GuideAuto-configurationIf no logical drives are configured, a CPQONLIN auto-configuration wizard(Figur

Running the Array Configuration Utility 5-29Custom ConfigurationCustom configuration allows you to create arrays and assign fault toleranceone array

5-30 Compaq StorageWorks RAID Array 4100 User GuideDrive Rebuild, Expand Priority, and AcceleratorRatioTo set the drive rebuild priority, expand pri

Running the Array Configuration Utility 5-31Accelerator RatioThe RA4000 controller has an onboard cache, called an Array Accelerator,which performs

5-32 Compaq StorageWorks RAID Array 4100 User GuideFailed Drives or Interim Recovery ModeIf a drive fails and hardware fault tolerance is enabled, o

Running the Array Configuration Utility 5-33If you do not replace the failed drive, the only option using the ArrayConfiguration Utility is to delet

5-34 Compaq StorageWorks RAID Array 4100 User GuideOptimizing Array Controller PerformanceTo improve system performance, keep these tips in mind bef

Chapter 6Options ROMPaqUse the Options ROMPaq utility to update the firmware on the RA4000Controller and hard drives.NOTE: The RA4000 Controller firm

6-2 Compaq StorageWorks RAID Array 4100 User Guide 7. Press Enter to go to step 9. or 8. If the ROM firmware in the RA4000 Controller is older tha

xi Compaq StorageWorks RAID Array 4100 User GuideAny surface or area of the equipment marked with these symbolsindicates the presence of a hot surfac

Options ROMPaq 6-3 12. If you are finished reprogramming options, press Esc to exit theROMPaq Utility. 13. Remove the Options ROMPaq diskette and

Appendix ARegulatory Compliance NoticesRegulatory Compliance IdentificationNumbersFor the purpose of regulatory compliance certifications and identifi

A-2 Compaq StorageWorks RAID Array 4100 User GuideModificationsThe FCC requires the user to be notified that any changes or modificationsmade to thi

Regulatory Compliance Notices A-3Japanese NoticeTaiwanese NoticeLaser ComplianceThe GBIC Module contains a laser diode of either gallium aluminumars

A-4 Compaq StorageWorks RAID Array 4100 User GuideThis indicates that the product isclassified as a CLASS 1 LASERPRODUCT. Battery Replacement Notice

Appendix BElectrostatic DischargeTo prevent damage to the system, be aware of the precautions you need tofollow when setting up the system or handling

B-2 Compaq StorageWorks RAID Array 4100 User GuideGrounding MethodsThere are several methods for grounding. Use one or more of the followingmethods

Appendix CSpecificationsThis appendix provides operating and physical specifications for the CompaqStorageWorks RAID Array 4100.Table C-1RA4100 Specif

C-2 Compaq StorageWorks RAID Array 4100 User GuideTable C-1RA4100 Specifications continuedParameter English MetricTemperature RangeOperatingShipping

Appendix DFibre Channel TechnologyThe information in this appendix defines Fibre Channel, describes itsadvantages, and outlines how it is used in the

About This Guide xiiCompaq Technical SupportYou are entitled to free hardware technical telephone support for your productfor as long you own the pro

D-2 Compaq StorageWorks RAID Array 4100 User GuideAdvantages of Fibre ChannelThe advantages of Fibre Channel technology include: Higher Performanc

Fibre Channel Technology D-3The arbitrated loop includes a device called the Compaq Fibre ChannelStorage Hub, which provides bypass switching at eac

D-4 Compaq StorageWorks RAID Array 4100 User Guide 5-meter multi-mode Fibre Channel cable option kit, part number234457-B22 15-meter multi-mode

Fibre Channel Technology D-512345678Figure D-2. Fibre Channel Arbitrated Loop configurationServer RA4100 1Fibre Host Adapter RA4000 Controller 2Fib

D-6 Compaq StorageWorks RAID Array 4100 User Guide Compaq Fibre Channel Storage Hub One Compaq Fibre Channel cable Multi-mode for distances of

Fibre Channel Technology D-7 End of Frame (EOF) - 4 bytesFigure D-3 shows a Fibre Channel data frame structure.4 bytesStart ofFrame24 bytesFrameHe

D-8 Compaq StorageWorks RAID Array 4100 User GuideProtocol LayersFive protocol layers are included in the Fibre Channel standard. They are FC-0throu

Appendix EHard Drive ArraysThe information in this appendix describes hard drive array concepts, dataprotection methods, including fault-tolerance opt

E-2 Compaq StorageWorks RAID Array 4100 User GuideDaz-9-12.EPSPhysicalDrive 1PhysicalDrive 2PhysicalDrive 3LogicalDrive 1LogicalDrive 2Drive ArrayFi

Hard Drive Arrays E-3Figure E-3 illustrates a larger array with two logical drives across six physicaldrives.Daz-9-16.EPSPhysical DrivesLogicalDrive

xiii Compaq StorageWorks RAID Array 4100 User GuideCompaq Authorized ResellerFor the name of your nearest Compaq Authorized Reseller: In the United

E-4 Compaq StorageWorks RAID Array 4100 User GuideDrive ArraysDrive arrays have several important attributes: A single array cannot span more than

Hard Drive Arrays E-5Drive Array BenefitsThe benefits of using drive arrays include: Data protection Performance enhancement Capacity changes

E-6 Compaq StorageWorks RAID Array 4100 User GuideTable E-1RAID Level CharacteristicsDistributedDataGuarding(RAID 5)DataGuarding(RAID 4)Mirroring(RA

Hard Drive Arrays E-7no data protection and you will have to rely on backups in case of hardwarefailure.Distributed Data Guarding (RAID 5)Distribute

E-8 Compaq StorageWorks RAID Array 4100 User GuideData Guarding (RAID 4)Data guarding, also called RAID 4, assures data reliability while using only

Hard Drive Arrays E-9RAID 1 always requires an even number of drives. To improve performance inconfigurations with more than two drives, the data is

E-10 Compaq StorageWorks RAID Array 4100 User GuideOnline SpareDuring configuration, consider assigning an online spare to further improveyour syste

Hard Drive Arrays E-11Table E-2Data Striping OptionsFault Tolerance Level Stripe Sizes (in sectors)RAID 016, 32, 64, 128, 256, 512RAID 116, 32, 64,

E-12 Compaq StorageWorks RAID Array 4100 User GuidePerformanceThe array accelerator increases performance by having the array controllerwrite data t

Hard Drive Arrays E-13The cells used in the array accelerator batteries are recharged via a “trickle”charge applied while system power is present. I

Chapter 1IntroductionThe Compaq StorageWorks RAID Array 4100 is a high-performance, externalsystem using various Fibre Channel devices and the Fibre C

E-14 Compaq StorageWorks RAID Array 4100 User GuideExpanding Storage CapacityThe RA4000 Controller allows the configuration of one or more separatel

Hard Drive Arrays E-15Daz-9-14.EPSOriginalLogicalDriveAddedPhysicalDrivesData from original logical drive redistributed over "Top" of allp

E-16 Compaq StorageWorks RAID Array 4100 User GuideIt is important to remember that all physical drives in an array should be thesame size (capacity

Hard Drive Arrays E-17Other Fault Management FeaturesThe RA4000 Controller and the network operating system offer several otherfault management and

E-18 Compaq StorageWorks RAID Array 4100 User GuideDrive Failure Alert FeaturesDrive failure features produce various drive alerts or error messages

Appendix FRecovering From Hard Drive FailureThe purpose of fault-tolerant configurations on the Compaq RAID Array 4000Controller is to protect against

F-2 Compaq StorageWorks RAID Array 4100 User Guide Compaq Insight Manager can detect failed drives remotely across anetwork.Problems such as reduc

Recovering From Hard Drive Failure F-3In any RAID 1 logical drive on the RA4100 having N physical drives in thearray (not including spare drives), t

F-4 Compaq StorageWorks RAID Array 4100 User GuideCAUTION: If the RA4100 has failed a drive, replace the drive with a new orknown-good replacement

Recovering From Hard Drive Failure F-5unrecoverable disk errors. In this case, the replacement drive should beremoved and replaced with another repl

1-2 Compaq StorageWorks RAID Array 4100 User Guide Wide-Ultra SCSI-3, Fast-Wide SCSI, and Fast SCSI-2 hard drivesupportThe Compaq StorageWorks RA4

IndexAaccelerator ratio 5-23, 5-31ACU D-4, D-6, E-16, 1-7Capacity Expansion 1-8configuring hardware 1-8disabling ArrayAccelerator 1-9running

2 Compaq StorageWorks RAID Array 4100 User Guideview screen with two arrays,illustrated 5-10Array Diagnostic Utility F-2Array Diagnostics Utilit

Index 3Capacity Expansionconsiderations E-15definition E-14, 1-8example E-15hard drive upgrade E-16online E-16, 1-7, 1-8capacity extension

4 Compaq StorageWorks RAID Array 4100 User Guidedisk drive failures,handling 5-33functionsaccelerator ratio 5-31drive rebuild 5-30set priority

Index 5drive bays, IDs 1-6drive failureprobability 5-7drive mirroring 1-8. See alsoRAID 1drive rebuild 5-30drive trays 2-12drive view box,

6 Compaq StorageWorks RAID Array 4100 User GuideFibre channeladvantages D-2arbitrated loop See FC-ALinterconnect schemes D-2standards D-1tec

Index 7front panel LEDs 3-2GBIC Installed LEDs on theStorage Hub 12 4-6GBIC Installed LEDs on theStorage Hub 7 4-5hard drive LEDs 3-5inserti

8 Compaq StorageWorks RAID Array 4100 User Guideconditions 1-5effect on performance E-7, E-8procedure 4-24SCSI 1-10, 2-1securing 2-12, 4-2

Index 9power supply LEDs 3-3RA4000 Controller LEDs 4-3removing the FanAssembly 4-20removing the powersupply 4-18removing the RA4000Controlle

10 Compaq StorageWorks RAID Array 4100 User GuideArray ConfigurationUtility 5-19controller box, illustrated 5-21controller buttons 5-21control

Introduction 1-3Table 1-1RA4100 Features continuedFeatures DescriptionSCSI ID Select AutomaticOptionsLongwave GBICHot-Pluggable Components DrivesFan

Index 11changing RAID level 5-16,5-18changing stripe size 5-16,5-18online spares E-4definition E-10limitations E-9operating systemsdrivers

12 Compaq StorageWorks RAID Array 4100 User GuideQqueuing, tagged-command 1-7,1-10RRA4000FC-AL D-5powering up 4-11RA4000before you begin 5-2

Index 13disadvantages E-7, E-8interim data recovery E-18RAID 5 E-7, 1-8advantages E-6automatic data recovery E-18auto-reliabilitymonitorin

14 Compaq StorageWorks RAID Array 4100 User GuideTtablesData Striping Options E-10RA4000 Controller LEDDescriptions 4-3technical support xiiit

1-4 Compaq StorageWorks RAID Array 4100 User GuideFront Panel FeaturesFigure 1-2 shows the front panel controls accessible to the user.123Figure 1-2

Introduction 1-5Rear Panel FeaturesFigure 1-3 shows the features and accessible components on the rear panel.12534Figure 1-3. Rear panel featuresPo

1-6 Compaq StorageWorks RAID Array 4100 User GuideRA4000 Controller—If the failed RA4000 Controller cache is replaced withthe same size cache on the

NoticeThe information in this publication is subject to change without notice.COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OREDITORIA

Introduction 1-7FeaturesThe advanced features supported by the RA4000 Controller are: Support for RAID 0, 1, 4, and 5 fault-tolerance options Fi

1-8 Compaq StorageWorks RAID Array 4100 User GuideThere are several ways to configure each set of hardware. The ArrayConfiguration Utility helps you

Introduction 1-9Array AcceleratorWARNING: There is risk of fire and burns if the battery pack is not handledproperly. For precautions regarding ba

1-10 Compaq StorageWorks RAID Array 4100 User GuidePerformance MonitoringCompaq Insight Manager can be used to monitor the performance of severalRA4

Introduction 1-11Redundant Power SupplyThe Compaq RA4100 includes a second power supply, which acts as aredundant supply. The redundant power supply

Chapter 2InstallationThis chapter provides information for installing and configuring the CompaqStorageWorks RAID Array 4100.Materials NeededIMPORTANT

2-2 Compaq StorageWorks RAID Array 4100 User Guide GigaBit Interface Converter (GBIC) modules (Two GBICs are requiredfor each Fibre Channel cable

Installation 2-3 5. Install the Fibre Host Adapter in an available slot in the server. Refer tothe Compaq StorageWorks Fibre Channel Host Bus Adapt

2-4 Compaq StorageWorks RAID Array 4100 User GuideInstalling the RA4100Before beginning these procedures, make sure you understand the followingwarn

Installation 2-5EnvironmentWhen installing your Compaq RA4100 in a rack, certain temperaturestandards and power requirements must be met.Space Requi

ContentsAbout This GuideText Conventions...ixSymb

2-6 Compaq StorageWorks RAID Array 4100 User GuideGroundingFor proper operation and safety, this equipment is required to be groundedproperly in acc

Installation 2-7The maximum internal rack temperature for your configuration should notexceed the values in the following table:Table 2-1Rack Intern

2-8 Compaq StorageWorks RAID Array 4100 User GuideBlanking PanelsIf all the vertical space in the rack is not filled by components, the gaps thatare

Installation 2-9 5. Use a pencil to outline the square holes in the front mounting railsindicated on the rack template tool that will be used to se

2-10 Compaq StorageWorks RAID Array 4100 User Guide 10. Identify the front of the right and left mounting brackets. The tabs helpalign the bracket

Installation 2-11 12. Attach the brackets to the rear mounting rails with the two screwsprovided. Tighten the screws securely.TROJ035.eps1Figure 2-

2-12 Compaq StorageWorks RAID Array 4100 User GuideInstalling the Hot-Pluggable Hard DrivesTo install the hot-pluggable drives into the RA4100: 1.

Installation 2-13Installing the Storage HubThe StorageWorks RAID Array 4100 supports the Storage Hub 7 or theStorage Hub 12.Installing the Storage H

2-14 Compaq StorageWorks RAID Array 4100 User GuideInstalling the Storage Hub 12The Storage Hub 12 provides a central point of connectivity for the

Installation 2-15Installing a Compaq Fibre Host Adapter ina Server 1. Refer to the server documentation for specific instructions on how toinstall

iv Compaq StorageWorks RAID Array 4100 User GuideChapter 2InstallationMaterials Needed...

2-16 Compaq StorageWorks RAID Array 4100 User GuideFigure 2-10. GigaBit Interface Converter Module (GBIC)Multi-Mode Fibre Channel CableMulti-mode F

Installation 2-17Cable Installation ConsiderationsTo ensure the cabling in the back of a rack system does not interfere withsystem operation or main

2-18 Compaq StorageWorks RAID Array 4100 User GuideConnecting the PowerIf you were not provided with a power cord for your computer, you shouldpurch

Installation 2-19WARNING: To reduce the risk of electric shock or damage to the equipment: Do not disable the power cord grounding plug. The grou

Chapter 3OperationThis chapter describes the operational features of the Compaq StorageWorksRAID Array 4100.Applying PowerBefore applying power to the

3-2 Compaq StorageWorks RAID Array 4100 User GuideFront PanelThe front panel LEDs are found on the RA4100.21Figure 3-1. Front panel LEDsTable 3-1Fr

Operation 3-3Power SupplyThe LEDs shown in Figure 3-2 apply only to the power supply on which theyare located.1221Figure 3-2. Power supply LEDsTabl

3-4 Compaq StorageWorks RAID Array 4100 User GuideFan AssemblyThe fan assembly LED applies only to that module.Figure 3-3. Fan Assembly LEDTable 3-

Operation 3-5Hard DrivesThe hard drive LEDs apply to the hard drive on which they are located. Thethree disk drive status LEDs (see Figure 3-4) defi

Chapter 4TroubleshootingThis chapter contains troubleshooting procedures and suggestions that youshould follow to diagnose problems quickly and to min

About This Guide vChapter 4TroubleshootingInterpreting Component LEDs...

4-2 Compaq StorageWorks RAID Array 4100 User GuideFigure 4-1. Drive Failure LEDIf any Drive Failure LED appears amber, replace that drive as soon a

Troubleshooting 4-312Figure 4-3. Fibre Host Adapter/E LEDsRA4000 Controller LEDsDuring normal runtime, the RA4000 Controller has 18 LEDs that indic

4-4 Compaq StorageWorks RAID Array 4100 User GuideTable 4-1RA4000 Controller LED DescriptionsLED Function Description0-2 Busy status ON = All LEDs o

Troubleshooting 4-5Fibre Channel Storage Hub LEDsStorage Hub 7The Fibre Channel Storage Hub 7 has two rows of LEDs. The top green LEDis lit when a G

4-6 Compaq StorageWorks RAID Array 4100 User GuideStorage Hub 12When power is applied, all LEDs turn on during the self-test, which lasts 15 to60 se

Troubleshooting 4-7The lower amber LED is the Bypass Port LED, which indicates that theassociated port is in bypass mode. Ports that do not detect v

4-8 Compaq StorageWorks RAID Array 4100 User GuideFigure 4-10. Fan Assembly LEDSee “Replacing Components” later in this chapter for important infor

Troubleshooting 4-912Figure 4-11. Power supply LEDIf this LED is amber, flashing amber, or alternating green/amber, replace thepower supply as soon

4-10 Compaq StorageWorks RAID Array 4100 User Guide 5. Squeeze the tabs on either side of the GBIC , then remove the GBICby pulling it straight ou

Troubleshooting 4-11 9. Push the controller in as far as it will go and close both latchesagainst the rear panel . The levers on each latch shoul

vi Compaq StorageWorks RAID Array 4100 User GuideRunning the Array Configuration UtilitycontinuedNetWare Online Array Configuration Utility (CPQONLI

4-12 Compaq StorageWorks RAID Array 4100 User Guide12231223Figure 4-15. Removing the Fibre Channel cable and GBIC 3. Squeeze the latches and piv

Troubleshooting 4-13 4. Remove the RA4000 Controller by pulling it straight out of thechassis .1123Figure 4-16. Removing the RA4000 Controller 5.

4-14 Compaq StorageWorks RAID Array 4100 User GuideReplacing the RA4000 Controller CacheIMPORTANT: Replacing the RA4000 Controller cache with the s

Troubleshooting 4-15 6. Carefully pull the daughterboard away from the controller board ,unplugging the signal connectors.12Figure 4-19. Removing

4-16 Compaq StorageWorks RAID Array 4100 User Guide 9. With the daughterboard installed, push the RA4000 Controller in as faras it will go . 10. C

Troubleshooting 4-17 4. Pull the GBIC out of the device .12231223Figure 4-22. Removing the failed GBIC 5. To insert a new GBIC, reverse steps 1

4-18 Compaq StorageWorks RAID Array 4100 User Guidereplacement. The second power supply takes over for the first in this type ofredundant configurat

Troubleshooting 4-19CAUTION: Do not operate the RA4100 for extended periods of time with eitherpower supply location open. Internal cooling airflow

4-20 Compaq StorageWorks RAID Array 4100 User GuideCAUTION: Do not allow the RA4100 to operate for more than five minuteswithout a working fan arra

Troubleshooting 4-21221Figure 4-26. Installing the Fan Assembly ModuleThe three fans should start turning immediately. The status LED on the FanAss

About This Guide viiAppendix EHard Drive ArraysThe Drive Array...

4-22 Compaq StorageWorks RAID Array 4100 User GuideOK to remove drive if not partof fault-tolerant configurationOK to remove failed driveDO NOT remo

Troubleshooting 4-23Follow these guidelines when replacing drives: Never remove more than one drive at a time. When you replace adrive, the contr

4-24 Compaq StorageWorks RAID Array 4100 User GuideTo replace a drive:Be sure that the Online and Drive Access LEDs are both OFF.See Figure 4-27. 1.

Troubleshooting 4-25 4. Insert the new drive into the same bay as the drive just removed, slidingit in as far as it will go . Make sure the ejector

Chapter 5Running the Array Configuration UtilityThis chapter provides instructions for using the Compaq Array ConfigurationUtility (ACU) and describes

5-2 Compaq StorageWorks RAID Array 4100 User Guide Error and Warning Messages NetWare Online Array Configuration UtilityThe Array Configuration

Running the Array Configuration Utility 5-3Accessing OnlineIf the server you are configuring is running Windows NT, you can install andrun the Array

5-4 Compaq StorageWorks RAID Array 4100 User Guide Unused space on an array—If the Array Configuration Utility detectsunused capacity in an array,

Running the Array Configuration Utility 5-5Creating a New Array—ExampleFor this example, use the following assumptions: Four 4.3-GB drives and two

5-6 Compaq StorageWorks RAID Array 4100 User GuideFigure 5-3. Controller Settings screen

About This GuideThis guide is designed to be used as step-by-step instructions for installationand as a reference for operation, troubleshooting, and

Running the Array Configuration Utility 5-7Step 2: Grouping physical drives of the same sizeinto an array 1. Click the Create Array button. The Cre

5-8 Compaq StorageWorks RAID Array 4100 User GuideFigure 5-5. Example Array ANOTE: The same spare drive can be assigned to multiple arrays. Howeve

Running the Array Configuration Utility 5-9Figure 5-6. Example Array - Logical Configuration View with one Array 5. Select the controller, then cl

5-10 Compaq StorageWorks RAID Array 4100 User GuideFigure 5-7. Create Logical Drive screen 3. In the upper-left area of this screen, click the Dis

Running the Array Configuration Utility 5-11Figure 5-8. Example array - Configuration View screen with two ArraysCapacity ExpansionCapacity expansi

5-12 Compaq StorageWorks RAID Array 4100 User Guide 2. Assign the new physical drives to an existing array. Existing logicaldrives will automatical

Running the Array Configuration Utility 5-13Figure 5-10. Expansion wizards - Logical Drive screen 6. Click the Create Logical Drive button. 7. Se

5-14 Compaq StorageWorks RAID Array 4100 User GuideCapacity ExtensionLogical drive extension allows you to increase the size of existing logicaldriv

Running the Array Configuration Utility 5-15NOTE: The Extend Logical Drive screen displays the current capacity and RAID overheadof the selected lo

5-16 Compaq StorageWorks RAID Array 4100 User Guide Online MigrationUse the Online RAID Level or Stripe Size Migration screen to: Reconfi

ix Compaq StorageWorks RAID Array 4100 User GuideText ConventionsThis document uses the following conventions to distinguish elements of text:Keys Ke

Running the Array Configuration Utility 5-17Figure 5-12. RAID/Stripe Size screen 4. Click the (RAID 5) Distributed Data Guarding option button. 5.

5-18 Compaq StorageWorks RAID Array 4100 User GuideRedundant ControllersRedundant pairs of Raid Array 4000 Controllers are marked with a specialicon

Running the Array Configuration Utility 5-19Array Configuration Utility ScreensMain Configuration ScreenThe main configuration screen is the first s

5-20 Compaq StorageWorks RAID Array 4100 User Guide Help—Use to access online help.Controller Selection BoxThe Controller Selection box is located

Running the Array Configuration Utility 5-21For each controller, the drive arrays, logical drives, and physical drivesconfigured for that controller

5-22 Compaq StorageWorks RAID Array 4100 User GuideClick the Settings button to display the Controller Settings screen (see thesection titled “Contr

Running the Array Configuration Utility 5-23Controller Settings ScreenUse the Controller Settings screen to select the operating system and to set t

5-24 Compaq StorageWorks RAID Array 4100 User GuideCreate Array ScreenIn this screen, all available drives attached to the selected controller aredi

Running the Array Configuration Utility 5-25Create Logical Drive ScreenIn this screen, you can select the fault-tolerance method, enable the arrayac

5-26 Compaq StorageWorks RAID Array 4100 User GuideThis screen first displays the maximum size logical drive that can be createdfor your drive array