HP Microsoft Windows Server 2003 for Itanium-based Systems manual Deleting target devices

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Deleting target devices

Syntax:

<target> delete [forced]

where <target> can be a controller, array, or logical drive. Except in the case of controllers, you can delete several devices simultaneously if they are of similar type by using the all keyword.

Because deleting a target device can result in data loss, the screen displays a warning prompt unless you include the forced parameter.

Example commands:

=> ctrl ch="Lab 4" delete forced => ctrl slot=3 ld all delete

Identifying devices

You can enter a command that causes the LEDs on target devices to blink, enabling you to identify the devices. The LEDs continue to blink until you enter the command to stop them blinking.

Syntax:

<target> modify led=onoff

Example commands:

=> ctrl ch="Lab 4" modify led=on

=> ctrl ch="Lab 4" modify array A led=off

Expanding an array

You can increase the storage space on an array by adding physical drives. The restrictions are that the added drives must be of the same type (for example, parallel SCSI or SATA), and they must each have a capacity no less than that of the existing drives in the array.

IMPORTANT: An array expansion, logical drive extension, or logical drive migration takes about 15 minutes per gigabyte, or considerably longer if the controller does not have a battery-backed cache. While this process is occurring, no other expansion, extension, or migration can occur simultaneously on the same controller.

Syntax:

<target> add drives=#:#,#:#,...allunassigned [forced]

where <target> is an array (or a logical drive, if the array contains only one logical drive).

If you add an odd number of drives to an array that contains at least one RAID 1+0 logical drive, the CLI displays a prompt that asks if it is acceptable to convert the RAID 1+0 logical drive to RAID 5 (or RAID ADG if the controller supports this RAID level). Adding the forced parameter to the command prevents this prompt from appearing.

Example commands:

=> ctrl slot=3 array A add drives=1:0,1:1 => ctrl slot=4 ld 1 add drives=allunassigned

Extending a logical drive

If the operating system supports logical drive extension, you can use any unassigned capacity on an array to enlarge one or more of the logical drives on the array.

Using the Command Line Interface 50

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Contents HP Array Configuration Utility User Guide Audience assumptions Contents Diagnosing array problems Getting started Features and system requirementsInstalling ACU This sectionComparison of ACU execution modes Overview for using ACUSetting the execution mode for Microsoft Windows Opening ACU in Local Application mode Choosing an operating modeOpening ACU in Browser mode Http//servername2301Opening ACU through Systems Insight Manager Select Device QueriesTypical Standard mode screen GUI operating modesTypical Configuration Wizards mode screen Completing the configuration process Typical Express Configuration mode screenPossible tasks in Standard Configuration mode Configuring a new controllerUsing Standard Configuration mode Using Express Configuration mode Click Finish Using the configuration wizardsCreating an array Click Create an array, and then click BeginConfiguring a new controller Creating a logical drive Click Create a logical drive, and then click BeginConfiguring a new controller Choices available after opening ACU Modifying an existing configurationModifying a configuration using Standard Configuration mode Clear Configuration Modifying a configuration using Express modeModifying a configuration using the Configuration wizards Click Express Configuration, and then click BeginCreate an array Controller settingsClick Controller Settings, and then click Begin Create a logical drive Delete arrays Click Delete logical drives, and then click Begin Delete logical drivesExpand Array Click Extend logical drive, and then click Begin Extend logical driveMigrate a logical drive Click Migrate a logical drive, and then click BeginRA4x00 controllers Spare managementSelective Storage Presentation Click Spare Management, and then click BeginMSA and Smart Array Cluster storage controllers Configuring switches Click ACU Switch ConfigurationSplitting a mirrored array Recombining a split, mirrored arrayModifying an existing configuration Introduction to scripting in ACU Command line syntaxScripting in ACU Operating modesSample custom input script Cpqacuxe -i FilenameScript file options Description of option categories in ACU scriptingAction Control categoryController category MethodLicenseKey, DeleteLicenseKey ClearConfigurationWithDataLossController RAIDArrayIDRebuildPriority, ExpandPriority SurfaceScanDelayArray category SSPStateDrive Logical Drive categoryOnlineSpare LogicalDriveStripeSize SizeSectors ArrayAcceleratorConnectionName Error reportingSSPAdaptersWithAccess HostModeACU scripting error messages 0-9, !, @, #, *, , , ,, -, , +, , ., /, and space. The ID Current configuration Running the CLI Using the Command Line InterfaceOverview of the ACU CLI Keyword abbreviations Command variableCLI syntax Target variableHiding warning prompts Typical proceduresExample command Querying a deviceSample scenario SyntaxExample Example commandsModifying the controller chassis name Using Selective Storage Presentation Sample scenarioModifying connection names Managing host modes connection profilesExpanding an array Deleting target devicesIdentifying devices Extending a logical driveMigrating a logical drive Target modify raid=01+0156adg? ss=8163264128256default?Managing spare drives Target modify size=#max? forcedChanging the controller cache ratio Changing the Rebuild Priority settingChanging the Expand Priority setting Enabling or disabling the drive cache Changing the surface scan delay timeRe-enabling a failed logical drive Disabling a redundant controller Setting the targetEnabling or disabling the array accelerator Typical scenarioRescanning the system = rescanProbability of logical drive failure Factors involved in logical drive failureProbability of logical drive failure Drive arrays and fault-tolerance methods Drive arraysDrive arrays and fault-tolerance methods Fault-tolerance methods Hardware-based fault-tolerance methodsDisadvantages RAID 0-No fault toleranceAdvantages RAID 1+0-drive mirroring RAID 5-distributed data guarding RAID 6 ADG-Advanced Data GuardingComparing the hardware-based RAID methods RAID RAID 6 ADGAlternative fault-tolerance methods Selecting a RAID methodServer Diagnostics Diagnosing array problemsDiagnostic tools Post messagesAcronyms and abbreviations SSP Index Index