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Compaq HSZ80 manual Disk drives

Models: HSZ80

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Unit

	Unit
Mirrorset	Partitioned
Unit	storageset
	storageset
Stripeset	RAIDset
	Unit
Disk drives	Striped
	mirrorset
Unit	Partitioned
	disk drive
	Unit
	CXO5368B
Figure 3–1. Units Created from Storagesets, Partitions, and Drives
Table 3–1 Controller Limitations for RAIDsets
RAIDset Type	Limit
Total number of RAID5	20
Total number of RAID5 + RAID1	30
Total number of RAID5 + RAID1 + RAID0	45

Compaq HSZ80 Array Controller ACS Version 8.3 Configuration and CLI Reference Guide

Image 93

Compaq HSZ80 manual Disk drives

Contents

HSZ80 Array Controller ACS Version Page Japan USA Page Chapter Creating Storagesets Vii CLI CommandsViii Appendix a Page Figures Xii Xiii TablesXiv Compaq Website Telephone Numbers Getting HelpElectrostatic Discharge Precautions PrecautionsComponent Precaution Xvi About This GuideVhdci Cable Precautions Maintenance Port PrecautionsXvii Conventions Typographical ConventionsXviii About This Guide Xix Special NoticesXx About This Guide Required ToolsXxi Related PublicationsXxii About This Guide Revision HistoryGeneral Description 2General Description Typical InstallationBasic Building Block 4General Description Basic Building Blocks ListSummary of Controller Features Summary of HSZ80 Features6General Description Bridging the Gap Between the Host and Its Storage Subsystem HSZ80 Array Controller8General Description HSZ80 Array Controller HSZ80 Array Controller10General Description Description of PartsDescription of Parts 12General Description Parts of the Optional Maintenance Port CableEMU PVA Operator Control Panel14General Description Maintenance PortFault Management Utility Utilities and ExercisersVirtual Terminal Display Disk Inline Exerciser Configuration UtilityCode Load and Code Patch Utility Clone UtilityField Replacement Utility Change Volume Serial Number UtilityDevice Statistics Utility Cache Module Memory Configurations Cache Module18General Description Location of Cache Module Parts Read Caching Caching TechniquesRead-Ahead Caching 20General DescriptionWrite-Back Caching Write-Through CachingNonvolatile Memory Fault-Tolerance for Write-Back CachingCache Policies Resulting from Cache Module Failures 22General DescriptionCache Policies and Cache Module Status Failover to controller B 24General DescriptionResulting Cache Policies and ECB Status 26General Description Through caching to its units Less than 28General Description 10 ECB Capacity Based on Memory Size External Cache Battery30General Description 11 Location of PartsBattery Hysteresis Charging DiagnosticsPage Configuring an HSZ80 Array Controller Configuration Rules 2Configuring an HSZ80 Array ControllerIntroduction Few Tips Configuring an HSZ80 Array Controller4Configuring an HSZ80 Array Controller Location of Parts for a Single Controller Configuration Configuring a Single Controller6Configuring an HSZ80 Array Controller SET Thiscontroller HOSTFUNCTION= ID, Mode 8Configuring an HSZ80 Array Controller Connecting a Single Controller to the Host 10Configuring an HSZ80 Array Controller Location of Parts for Transparent Failover SET Failover Copy = Thiscontroller 12Configuring an HSZ80 Array ControllerRestart Othercontroller Restart Thiscontroller 14Configuring an HSZ80 Array Controller Connecting in Transparent Failover Mode to the Host 16Configuring an HSZ80 Array Controller Location of Parts for Multiple-Bus Failover SET Multibusfailover Copy = Thiscontroller 18Configuring an HSZ80 Array ControllerRestart Othercontroller Restart Thiscontroller 20Configuring an HSZ80 Array Controller Connecting in Multiple-Bus Failover Mode to the Host 22Configuring an HSZ80 Array Controller Optional StepsChange the CLI prompt Set the maximum data-transfer rate UPS Support 24Configuring an HSZ80 Array ControllerSetting the PVA Module ID Switch Establishing a Local Connection to Controller 26Configuring an HSZ80 Array ControllerPC/Terminal to Maintenance Port Connection This Controller and Other Controller 28Configuring an HSZ80 Array ControllerUsing Transparent Failover Mode Selecting a Failover Mode30Configuring an HSZ80 Array Controller Using Multiple-Bus Failover ModeEnabling Mirrored Write-Back Cache Selecting a Cache Mode32Configuring an HSZ80 Array Controller Fault-ToleranceHost Scsi Bus Setting Scsi Target ID NumbersDevice Scsi Bus 34Configuring an HSZ80 Array ControllerUsing Preferred ID Numbers Page Creating Storagesets 2Creating Storagesets Disk drives 4Creating Storagesets Planning and Configuring StoragesetsCreating a Storageset and Device Profile Type of Storageset Creating StoragesetsDetermining Storage Requirements A Comparison of Different Kinds of Storagesets Choosing a Storageset Type8Creating Storagesets For Disk Array TechnologyUsing Stripesets to Increase I/O Performance 10Creating Storagesets Considerations for Planning a StripesetDistribute Members across Ports 12Creating Storagesets Using Mirrorsets to Ensure AvailabilityMirrorsets Maintain Two Copies of the Same Data Considerations for Planning a MirrorsetFirst Mirrorset Members on Different Buses 14Creating StoragesetsUsing RAIDsets to Increase Performance Availability 16Creating Storagesets Considerations for Planning a RAIDsetPage Striping and Mirroring in the Same Storageset 18Creating StoragesetsConsiderations for Planning a Striped Mirrorset 20Creating Storagesets Cloning Data for BackupClone Steps for Duplicating Unit Members 22Creating Storagesets ExampleUse available device DISK20400size=832317 for member DISK20000size=832317 y,n y ? y 24Creating StoragesetsSaving Subsystem Configuration Information to a Single Disk Backing Up Your Subsystem Configuration26Creating Storagesets Saving Subsystem Configuration Information to a StoragesetController Displaying the Status of the Save Configuration FeatureCache 28Creating StoragesetsNotransportable Node IDs Restoring Node IDs30Creating Storagesets Page 32Creating Storagesets Assigning Unit Numbers for Host Access to StoragesetsLUN Unit Numbering Examples34Creating Storagesets Creating a Storageset Map10. Storageset Map Device PTL Addressing Convention within Controller 36Creating StoragesetsLocate devicename 11. PTL Naming Convention Device port numbers Target Numbers 38Creating Storagesets13. Locating Devices using PTLs Planning Partitions Defining a Partition40Creating Storagesets Guidelines for Partitioning Storagesets Disk Drives Enabling Switches Choosing Switches for Storagesets DevicesChanging Switches 42Creating StoragesetsRAIDset Switches Replacement PolicyReconstruction Policy 44Creating Storagesets MembershipMirrorset Switches Copy Speed Read Source46Creating Storagesets Disaster Tolerance Support Device Switches Transportability48Creating Storagesets Device Transfer Rate Local/Remote 50Creating StoragesetsDtsupport Chunk Size Initialize Switches52Creating Storagesets Increasing the Request Rate16. Chunk Size Smaller than the Request Size Increasing the Data Transfer RateMaximum Chunk Size for RAIDsets Increasing Sequential Write PerformanceMaximum Chunk Sizes for a RAIDset 54Creating StoragesetsConsiderations for Saving the Configuration Save Configuration56Creating Storagesets Destroy/Nodestroy Unit Switches Unit Switches for Storagesets58Creating Storagesets Configuring Storagesets ADD Disk DISKnnnn ptl-location switchvalue 2Configuring StoragesetsAdding Disk Drives Adding One Disk Drive at a TimeConfiguring a Stripeset 4Configuring Storagesets Configuring a MirrorsetADD Mirrorset mirrorset-name DISKnnnn DISKnnnn switch Initialize mirrorset-name switchShow mirrorset-name ADD Unit unit-number mirrorset-name switch6Configuring Storagesets Configuring a RAIDsetADD Raidset RAIDset-name DISKnnnn DISKnnnn DISKnnnn switch Initialize RAIDset-name switchConfiguring a Striped Mirrorset Show RAIDset-nameADD Stripeset stripeset-name mirrorset1 mirrorset2 8Configuring Storagesets ADD Unit unit-number DISKnnnn switchvalue Configuring a Single-Disk UnitPartitioning a Storageset or Disk Drive 10Configuring StoragesetsShow storageset-name Initialize storageset-name switch12Configuring Storagesets Adding a Disk Drive to the Spareset 14Configuring Storagesets Removing a Disk Drive from the SparesetEnabling Autospare Deleting a Storageset 16Configuring StoragesetsDelete unit-number Delete storageset-nameDisplaying the Current Switches Changing Switches for a Storageset or DeviceChanging RAIDset and Mirrorset Switches Changing Device SwitchesChanging Initialize Switches Changing Unit Switches18Configuring Storagesets Enabling and Disabling the CCL Configuring with the Command Console LUNSCSI-3 Mode SCSI-2 Mode20Configuring Storagesets Finding the CCL LocationAdding Storage Units with the CCL Troubleshooting with the CCL22Configuring Storagesets Host Modes Configuring Units with Multiple HostsIBM AIX 24Configuring StoragesetsSetting Host Modes Transparent Failover Mode 26Configuring StoragesetsDesignating the Port Accessing Units on a Given Port Designating the Host Scsi ID Number 28Configuring StoragesetsScsi ID Designating the Port and Designating the Host Scsi ID Number 30Configuring StoragesetsSET this PORT1ID = SET this PORT2ID = 32Configuring Storagesets Multiple-Bus Failover ModeAssigning Units through Multiple Host Adapters 34Configuring Storagesets Moving a Storageset from one Subsystem to Another Moving StoragesetsLocate disk-name 36Configuring StoragesetsDelete disk-name ADD Disk disk-name PTL-locationADD Unit unit-number storageset-name ADD storageset-name disk-name disk-nameMove disk drives to their new location 38Configuring StoragesetsCLI Commands Command Overview Using the CLI2CLI Commands CLI OverviewEntering CLI Commands Getting HelpSET Thiscontroller ? Recall and Edit Command Keys 4CLI CommandsUnit Naming Unit Number 6CLI Commands Command SyntaxCommand parameter Switches Changing the CLI PromptADD Disk SyntaxParameters 8CLI Commands SwitchesTransportable RemoteTRANSFERRATEREQUESTED=ASYNCHRONOUS TRANSFERRATEREQUESTED=20MHZ DefaultTRANSFERRATEREQUESTED=10MHZ TRANSFERRATEREQUESTED=5MHZ ADD Disk DISK40200 4 2 0 TransportableSee also 10CLI CommandsInitialize DISK20000 2 0 ADD Unit D199 DISK20000 ADD Disk DISK200 2 0 0 RemoteCOPY=FAST ADD MirrorsetPOLICY=BESTPERFORMANCE Default 12CLI CommandsDtsupport Nodtsupport POLICY=BESTFITREADSOURCE=ROUNDROBIN READSOURCE=disk-name READSOURCE=LEASTBUSY Default14CLI Commands ADD Mirrorset MIRR1 DISK10000 DISK20100 DISK30200Initialize MIRR1 ADD Unit D104 MIRR1 ADD Disk ADD Unit Initialize Mirror ReduceShow Mirrorsets Show Storagesets Unmirror ADD Passthrough 16CLI CommandsParameter ADD Passthrough passthrough-name scsi-port-target-lunADD Passthrough TAPE20300 2 3 ADD Unit P100 TAPE20300 18CLI Commands Show Devices Show PassthroughShow passthrough-name RAIDset-name ADD Raidset20CLI Commands RECONSTRUCT=NORMAL DefaultRECONSTRUCT=FAST Reduced Noreduced DefaultADD Raidset RAID9 DISK10000 DISK20100 DISK30200 Initialize RAID8ADD Unit D70 RAID8 22CLI CommandsADD Raidset RAID6 DISK10300 DISK20400 DISK30200 Reduced SET Raidset Show RaidsetADD Spareset DISK20200 ADD Spareset DISK30300 ADD SparesetDelete Spareset Show Spareset Show Storagesets Disk-nameADD Stripeset 24CLI CommandsStripeset-name Container-name1 container-name2 container-nameNInitialize STRIPE1 ADD Unit D103 STRIPE1 ADD Stripeset STRIPE1 DISK10000 DISK20100 DISK3020026CLI Commands ADD Unit ADD MirrorsetInitialize Show Storageset Show Stripeset ADD Unit ADD Unit unit-number container-nameUnit-number 28CLI Commands ADD Unit Switches for StoragesetsPage MAXIMUMCACHEDTRANSFER=32 Default MAXIMUMCACHEDTRANSFER=n 30CLI CommandsNopreferredpath Default PARTITION=partitionnumberReadaheadcache Default Readcache DefaultNoreadcache NoreadaheadcacheNorun 32CLI CommandsNowriteprotect NowritebackcacheADD Unit D102 DISK10000 PREFERREDPATH=THISCONTROLLER Createpartition 34CLI CommandsDelete unit-number SET unit-number Show UnitsClearerrors CLI Clearerrors CLIClearerrors CLI Clearerrors Clearerrors Clearerrors ClearerrorsClearerrors controller Invalidcache 36CLI CommandsController Examples 38CLI Commands Clearerrors device-nameUNKNOWNClearerrors DISK30000 Unknown Device-nameSee also Clearerrors unit-numberLOSTDATA 40CLI CommandsClearerrors D103 Lostdata See also 42CLI Commands Clearerrors unit-numberClearerrors D103 Unwriteabledata UnwriteabledataSee also 44CLI Commands Configuration ResetConfiguration Reset Configuration Restore Configuration Save InitializeConfiguration Restore Configuration RestoreConfiguration Reset Configuration Save Initialize 46CLI CommandsConfiguration Reset Configuration Restore Initialize Configuration SaveCreatepartition 48CLI CommandsCreatepartition container-name SIZE=percent SIZE=percentCAPACITY= CYLINDERS= HEADS= SECTORSPERTRACK= Destroy Partition Show 50CLI CommandsDelete STRIPE1 Delete DISK1000052CLI Commands Delete Failedset Delete Spareset UnmirrorDelete RAID9 Delete Failedset Delete Failedset DISK20200SET Failedset Show Failedset 54CLI Commands Delete SparesetDelete Spareset DISK20300 ADD Spareset Show SparesetDelete D103 Delete unit-number56CLI Commands ADD Unit Clearerrors LostdataDelete Failedsets Delete Sparesets Destroypartition Destroypartition Destroypartition container-name PARTITION=partition-numberPartition-number Delete D102 Destroypartition RAID9 PARTITION=2 58CLI CommandsDirectory DirectoryRUN Help 60CLI CommandsHelp HelpYour options are SET ?62CLI Commands InitializeInitialize container-name CHUNKSIZE=DEFAULT Default CHUNKSIZE=n Destroy Default 64CLI CommandsSaveconfiguration Nosaveconfiguration DefaultShow Devices Full Initialize DISK10000 SaveconfigurationReduce DISK40400 Initialize DISK40400 Nodestroy 66CLI CommandsLocate CancelLocate parameter ALLDisks 68CLI CommandsPTL SCSI-location UnitsLocate DISK10000 Locate Cancel Locate D102Locate Disks 70CLI Commands MirrorMirror disk-name mirrorset-name POLICY=BESTFIT POLICY=BESTPERFORMANCE Nopolicy Default72CLI Commands ADD Mirrorset Reduce Show Mirrorsets Unmirror 74CLI Commands PoweroffBattery on OverridebadflushSECONDS=nn Poweroff Switch SettingsPoweroff SECONDS=10 76CLI CommandsReduce 78CLI Commands Reduce disk-name1 disk-name2 disk-name3Disk-name1 disk-name2 disk-name3 Show Mirrorsets Show STRIPE180CLI Commands ADD Mirrorset RUN Clone Show MirrorsetSET mirrorset-name Rename old-container-name new-container-name RenameOld-container-name New-container-nameRename DISK10000 Mydisk Show Disks 82CLI CommandsIgnoreerrors Noignoreerrors DefaultRestart controller Immediateshutdown 84CLI CommandsRestart Thiscontroller Restart OthercontrollerRetryerrors D103 Unwriteabledata Retryerrors unit-numberRUN 86CLI CommandsRUN program-name Program-namePage RUN Dilx 88CLI CommandsSelftest controller Selftest controllerSelftest Othercontroller Ignoreerrors 90CLI CommandsSelftest Thiscontroller Restart controller Shutdown controllerSET controller Switches SET controllerThiscontroller 92CLI Commands Nocacheups Default CACHEFLUSHTIMER=n CACHEFLUSHTIMER=10 DefaultAllocationclass CacheupsCommandconsolelun 94CLI CommandsNocommandconsolelun Default HOSTFUNCTION=mode HOSTFUNCTION=ID,modeNODEID=nnnn-nnnn-nnnn-nnnn checksum NOPORT1ID 96CLI CommandsNOPORT2ID MirroredcachePage 98CLI Commands NOPORT1PREFERREDIDNOPORT2PREFERREDID TERMINALSPEED=baudrate TERMINALSPEED=9600 Default SCSIVERSION=SCSI-2 DefaultSCSIVERSION=SCSI-3 TERMINALPARITY=ODD TERMINALPARITY=EVENMaximum SCSI-Bus Lengths for Given Data Transfer Rate 100CLI CommandsSET Othercontroller PROMPT=CONTROLLER B 101SET Thiscontroller PORT1ID=2,5 Show Thiscontroller Show OthercontrollerSET device-name 102CLI Commands103 SET DISK20000 TRANSFERRATEREQUESTED=5MHZ 104CLI CommandsSET DISK10300 Transportable SET DISK10300 RemoteSET EMU 105SET EMU 106CLI Commands EMU Set Point TemperaturesFANSPEED=AUTOMATIC Default FANSPEED=HIGH107 SET EMU SENSOR2SETPOINT=34SET EMU FANSPEED=HIGH SET Failedset 108CLI CommandsSET Failedset Autospare NoautospareSET DISK10000 Transportable 109Init DISK10000 SET Failedset Autospare110CLI Commands SET FailoverThiscontroller Othercontroller 111 SET Failover COPY=THISCONTROLLERSET Multibusfailover SET Nofailover SET Nomultibusfailover SET mirrorset-name 112CLI CommandsMEMBERSHIP=number-of-members 113114CLI Commands REMOVE=disk-nameREPLACE=disk-name 115 SET MIRR1 POLICY=BESTFIT 116CLI CommandsSET MIRR1 REMOVE=DISK30000 117SET MIRR1 REPLACE=DISK30200 ADD Mirrorset Reduce Show Mirrorset UnmirrorSET Multibusfailover 118CLI CommandsSET Failover SET Nofailover SET Nomultibusfailover 119Nodestroyunflushabledata Default 120CLI CommandsSET Nofailover Destroyunflushabledata121 SET NofailoverSET Failover SET Multibusfailover SET Nomultibusfailover SET Nomultibusfailover 122CLI Commands123 SET Nomultibusfailover DestroyunflushabledataSET Failover SET Multibusfailover SET Nofailover SET RAIDset-name 124CLI Commands125 126CLI Commands SET RAID9 POLICY=BESTFITSET RAID9 REMOVE=DISK10000 127 SET RAID9 REPLACE=DISK20100ADD Raidset Show Raidsets SET unit-number 128CLI Commands129 130CLI Commands 131 MAXIMUMCACHEDTRANSFER=n MAXIMUMCACHEDTRANSFER=32 DefaultERRORMODE=NORMAL ERRORMODE=FAILSAFE 132CLI Commands133 134CLI Commands SET D102 Writeprotect Noreadcache 135Show 136CLI CommandsShow controller Show device-name Show device-type Show EMUDevice-type 137EMU Storageset-nameFull 138CLI Commands139 140CLI Commands Show MIRR1Show Mirrorset Full Show Thiscontroller Full 141Show EMU 142CLI Commands143 Shutdown controller144CLI Commands Shutdown ThiscontrollerRestart controller Selftest controller Unmirror 145Unmirror DISK10300 ADD Mirrorset Reduce RUN Clone 146CLI CommandsSystem Profiles 2System Profiles Device ProfileReduced Membership Storageset Profile4System Profiles Enclosure TemplateController Specifications 2Controller Specifications Physical and Electrical Specifications for ControllerOptimum Operating Environmental Specifications Environmental SpecificationsTable B-3 Maximum Operating Environmental Specifications Table B-4 Maximum Nonoperating Environmental Specifications4Controller Specifications Glossary Bit GL-2GlossaryCSR Data striping GL-4GlossarySee ECB Dual-simplexFD Scsi GL-6GlossaryIBR Operation GL-8GlossaryMist Normal member GL-10GlossaryPCM PTL GL-12GlossaryRAIDset RFI GL-14GlossarySCSI-P cable Storage subsystem GL-16GlossarySynchronous GL-17Vhdci GL-18GlossaryGL-19 Page ADD Raidset RAIDset-name container- nameN ADD Passthrough passthrough-name scsi-port-target-lun,5-16ADD Stripeset stripeset-name container- nameN ADD Unit unit-number container-name,5-27AddingBatteryoff Poweroff Batteryon Poweroff 2IndexAUTOSPARE, 4-15SET Failedset Capacity CREATEPARTITION, 5-49INITIALIZE CacheupsChunksize Initialize LostdataSET MULTIBUSFAILOVER, 5-118SET Nofailover 4IndexPage 6Index CopyCylinders CREATEPARTITION, 5-49INITIALIZE Destroyunflushabledata SET Nofailover SET Nomultibusfailover 8Index Disableaccesspath ADD UnitDilx DisksEnableaccesspath ADD Unit ErrormodeECB Index Nosaveconfiguration SaveconfigurationADD Disk Maximumcachedtransfer ADD Unit PTL SCSI-location,5-68unit-number,5-68UNITSMembership SET mirrorset-name,5-113MembershipNodeid Nooverridebadflush Poweroff Noautospare SET FailedsetINVALIDCACHE, 5-36NODTSUPPORT Nopolicy ADD RAIDSET, 5-20NOPORT1IDNOPORT2TRANSFERRATEREQUEST ED Overridebadflush PoweroffNopreferredpath NoreadcacheShow device-type,5-137Path PORT1IDPORT2ID Preferredpath PromptSET controller, 5-98Protocol SET RAIDset-name,5-125 SET mirrorset-name,5-114Rename old-container-name new-container SET mirrorset-name,5-116RUN program name PORT1PREFERREDID PORT1TRANSFERRATEREQUESTE D PORT2PREFERREDID PORT2TRANSFERRATEREQUESTE DWRITEPROTECT, 5-133WRITEBACKCACHE Show storageset-name,5-137SHOW storageset-type,5-137 PassthroughSize Createpartition TRANSFERRATEREQUESTED, 3-49TRANSPORTABLE Time SET controller, 5-99Tip, defined, xix Tools, xx TopologyTRANSFERRATEREQUESTED, 3-49ADD Disk Vtdpy Writeprotect