Dell PowerVault MD3420 - Manual (Page 238)

NOTE: If the warningThresholdPercent parameter or the repositoryFullPolicy parameter
is not specified, the previously set values are used. If you use the optional parameters, the re-create
snapshot processes each snapshot virtual disk separately. If the same userLabel (name) is specified
for more than one virtual disk, the command fails. If no optional parameters are specified, the re-
create Snapshot processes the specified snapshot virtual disks as a batch, provided a validation
check of all of the virtual disks runs successfully. If successful, the snapshots start the re-creation
process and all of the affected virtual disks (snapshot, source, and repository) are quiesced until the
process is complete.
NOTE: If no optional parameters are specified, the recreate snapshot command processes the
specified snapshot legacy virtual disks as a batch, provided a validation check of all of the virtual
disks runs successfully. If successful, the snapshots start the re-creation process and all of the
affected virtual disks (snapshot, source, and repository) are quiesced until the process is complete.
NOTE: The Microsoft Virtual Shadow Copy Service (VSS) provider allows the recreation of multiple
snapshots simultaneously.
Reduce Disk Pool Capacity
Description
This command reduces the capacity of the disk pool by logically removing the physical disks from the
pool. This command uses the Dynamic Capacity Reduction (DCR) feature, which enables you to remove
selected physical disks from a disk pool and re-use the removed physical disks as needed.
The maximum number of physical disks that you can remove from a disk pool in a single DCR operation
is 12. You cannot reduce the disk pool to below the minimum disk pool size.
Syntax
set diskPool [diskPoolName]
removeDrives=[enclosureID1,drawerID1,slotID1
... enclosureIDn,drawerIDn,slotIDn]
Parameters
Parameter Description
diskPool
The name of the disk pool for which you want to
reduce capacity. Enclose the disk pool name in
square brackets ([ ]).
removeDrives
The physical disks that you want to remove from
the disk pool. For high-capacity expansion
enclosures, specify the enclosure ID value, the
drawer ID value, and the slot ID value for each
physical disk that you want to remove. For low-
capacity expansion enclosures, specify the
enclosure ID value and the slot ID value for each
physical disk that you want to remove. Enclosure
ID values are 0 to 99. Drawer ID values are 0 to 4.
Slot ID values are 0 to 31.
Enclose the enclosure ID values, the drawer ID
values, and the slot ID values in square brackets
([ ]).
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