IBM Storwize Mdisk Tasks · IBM_STORWIZE_OUTPUT_MDISK_ Outputofmdiskidentity ibmStorwizeMdiskIdentity IDENTITY IBM_STORWIZE_OUTPUT_MDISK_ Outputofmdiskname gen_text_input NAME IBMStorwizeMdiskTasks

IBM Storwize Mdisk Tasks

This chapter contains the following sections:

• Assign IBM Storwize MDisk to Pool, on page 2• Create IBM Storwize Array MDisk, on page 3• Delete IBM Storwize Array MDisk, on page 4• Rename IBM Storwize MDisk, on page 5• Select IBM Storwize MDisk Tier, on page 6• Set IBM Storwize Spare Goal, on page 7• Swap IBM Storwize MDisk Drive, on page 8• Unassign IBM Storwize MDisks from Pool, on page 9

IBM Storwize Mdisk Tasks1

Assign IBM Storwize MDisk to PoolSummary

Assign MDisk To PoolDescription

This task assigns specified mdisk to specified storage pool by assigning unmanaged MDisks to pool. Byadding unmanaged MDisks to a pool, their status changes to managed MDisks. Managed MDisks canbelong to only one pool. UnmanagedMDisks can either be added to a newly created pool or to an existingpool to expand its capacity. Pools are commonly used to groupMDisks from the same storage subsystem.A new pool can be created in the MDisks by Pools panel by clicking the Create Pool

Inputs

MandatoryMappable To TypeDescriptionInput

YibmStorwizeMdiskIdentitySelect MDisk to assign intopool

MDisk

YibmStorwizePoolIdentitySelect Storage poolStorage Pool

Outputs

TypeDescriptionOutput

ibmStorwizeMdiskIdentityOutput of mdisk identityIBM_STORWIZE_OUTPUT_MDISK_IDENTITY

gen_text_inputOutput of mdisk nameIBM_STORWIZE_OUTPUT_MDISK_NAME

ibmStorwizePoolIdentityOutput of pool identityIBM_STORWIZE_OUTPUT_POOL_IDENTITY

gen_text_inputOutput of target pool nameIBM_STORWIZE_OUTPUT_TARGET_POOL_NAME


IBM Storwize Mdisk TasksAssign IBM Storwize MDisk to Pool

Create IBM Storwize Array MDiskSummary

Create IBM Storwize Array MDiskDescription

This task is used to create array(RAID) mdisks from internal storage. A managed disk (MDisk) is alogical unit of physical storage. MDisks are either arrays (RAID) from internal storage or volumes fromexternal storage systems. MDisks are not visible to host systems. Each MDisk is divided into a numberof extents, which are numbered, from 0, sequentially from the start to the end of the MDisk. The extentsize is a property of storage pools. When an MDisk is added to a storage pool, the size of the extents thatthe MDisk is divided into depends on the attribute of the storage pool to which it has been added.

Inputs


YaccountNameEnter Account nameAccount Name

Ygen_text_inputEnter MDisk nameMDisk Name

YibmStorwizeAllInternalDriveIdentity

Select drive(s)Drive(s)

YibmStorwizeRaidLevelListSelect RAID level for ArrayMDisk

RAID level

YibmStorwizePoolIdentitySelect a pool to add createdMDisk

Pool

IBMStorwizeBooleanListCheck this option to enableencryption

Enable encryption

Outputs





IBM Storwize Mdisk TasksCreate IBM Storwize Array MDisk

Delete IBM Storwize Array MDiskSummary

Delete Array MDiskDescription

This task deletes the specified array mdisk. If the mdisk has data on it, forcing the deletion will deleteall data from the mdisk and moves it to other mdisks in the pool. The task fails if there are insufficientfree extents on other disks in the mdisk group for the duration of the command. If you do specify theforce flag, an attempt will be made to migrate the extents that are in use onto other free extents withinthe group. If there are not enough free extents in the group, the command will fail even if the force flagis specified.

Inputs


YibmStorwizeMdiskIdentitySelect arrayMDisk to deleteMDisk

IBMStorwizeBooleanListCheck this option to performrecursive delete

Delete RAID array MDisk evenif it has data on it. Systemmigrates data to other MDisks inthe pool.

Outputs





IBM Storwize Mdisk TasksDelete IBM Storwize Array MDisk

Rename IBM Storwize MDiskSummary

Rename MDiskDescription

This task assigns a new name for the specified mdisk.Inputs


YibmStorwizeMdiskIdentityEnter new name for the IBMMDiskMDisk

Ygen_text_inputEnter new name for the IBMMDiskMDisk Name

Outputs





IBM Storwize Mdisk TasksRename IBM Storwize MDisk

Select IBM Storwize MDisk TierSummary

Select MDisk TierDescription

This task assigns the specified tier to an mdisk. Two tiers exist, Generic SSD & Generic HDD. AllMDisks belong to one tier or the other, which includes MDisks that are not yet part of a pool. If youcreate a storage pool with both generic SSDMDisks (classified with the generic_ssd option) and genericHDD MDisks (generic_hdd or default option), Easy Tier is automatically turned on for pools with bothSSD MDisks and HDD MDisks. IBM Storwize does not automatically identify external SSD MDisks;all external MDisks are put into the HDD tier by default. You must manually identify external SSDMDisks and change their tiers

Inputs


YibmStorwizeMdiskIdentitySelect MDisk to set tierMDisk

YibmStorwizeMdiskTierListSelect desired tierSelect desired tier

Outputs





IBM Storwize Mdisk TasksSelect IBM Storwize MDisk Tier

Set IBM Storwize Spare GoalSummary

Set Spare GoalDescription

This task sets the number of spare drives that is required to protect the array from drive failures. If thenumber of drives assigned as Spare does not meet the configured spare goal, an error is logged in theevent log that reads Array MDisk is not protected by sufficient spares. This error can be fixed by eitherreplacing defunct drives,which occupy a spare drive, or by adding additional drives as spare. Remember,during the internal drive configuration, spare drives are automatically assigned according to the chosenRAID presetâs spare goals,

Inputs


YibmStorwizeMdiskIdentitySelect MDisk to set spare goalMDisk

Ygen_text_inputEnter number to set spares (goal)Set Number of Spares(Goal)

Outputs





IBM Storwize Mdisk TasksSet IBM Storwize Spare Goal

Swap IBM Storwize MDisk DriveSummary

Swap IBM Storwize MDisk DriveDescription

This task can be used to replace a drive in the array with another drive withthe status of Candidate orSpare. This action is used to replace a drive that has failed, orthat is expected to fail soon, for example,as indicated by an error message in the event log

Inputs


YibmStorwizeMdiskIdentityIBM Storwize MDiskMDisk

ibmStorwizeAllInternalDriveIdentity

Select a driveSelect a drive to swap out ofMDisk

ibmStorwizeAllInternalDriveIdentity

Select a driveSelect a drive to swap intoMDisk

Outputs





IBM Storwize Mdisk TasksSwap IBM Storwize MDisk Drive

Unassign IBM Storwize MDisks from PoolSummary

Unassign MDisk From PoolDescription

This task unassigns the specified mdisk from the specified pool. if the mdisk has data on it, forcing theunassign will remove all data from mdisk. the system migrates the data to other mdisk in the pool.

Inputs


YibmStorwizeMdiskIdentity

Select MDisk to unassignfrom pool

MDisk

IBMStorwizeBooleanListCheck this option to performrecursive delete

RemoveMDisk from storage pooleven if it has data on it.Systemmigrates data to other MDisks inthe pool

Outputs





IBM Storwize Mdisk TasksUnassign IBM Storwize MDisks from Pool


IBM Storwize Mdisk TasksUnassign IBM Storwize MDisks from Pool

Documents

IBM Storwize Mdisk Tasks · IBM_STORWIZE_OUTPUT_MDISK_ Outputofmdiskidentity ibmStorwizeMdiskIdentity IDENTITY IBM_STORWIZE_OUTPUT_MDISK_ Outputofmdiskname gen_text_input NAME IBMStorwizeMdiskTasks