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Dell PowerVault MD3260i User Manual

Page 58

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The oldest snapshot images in the snapshot group until the maximum number of images defined with the parameter is
met. Deleting snapshot images frees repository capacity so it can be used to satisfy ongoing copy-on-write
requirements for the remaining snapshot images.

Adding A Member Virtual Disk To A Consistency Group

To add a new base virtual disk to an existing consistency group, specify an existing repository virtual disk for the new
consistency group member or create a new repository virtual disk. When creating a new repository virtual disk, identify
an existing disk group or disk pool in which to create the repository virtual disk.
To add a new base virtual disk to a consistency group with an existing virtual disk:
set consistencyGroup ["consistencyGroupName"]

addCGMemberVirtualDisk="baseVirtualDiskName" repositoryVirtualDisk="repos_XXXX"

To add a new base virtual disk to a consistency group and create a new repository virtual disk using a disk group:
set consistencyGroup ["consistencyGroupName"]

addCGMemberVirtualDisk="baseVirtualDiskName"

repositoryVirtualDisk=("diskGroupName" capacity=capacityValue(KB|MB|GB|TB|

bytes))

To add a new base virtual disk to a consistency group and create a new repository virtual disk using a disk pool:
set consistencyGroup ["consistencyGroupName"]

addCGMemberVirtualDisk="baseVirtualDiskName"

repositoryVirtualDisk=("diskPoolName" capacity=capacityValue(KB|MB|GB|TB|bytes))

Restrictions

The Snapshot premium feature must be enabled on the storage array.

To add a new member virtual disk, the consistency group must fewer than the maximum number of virtual disks

allowed in your configuration.

If the base virtual disk resides on a standard disk group, the repository members for any associated consistency

group can reside on either a standard disk group or a disk pool. If a base virtual disk resides on a disk pool, the

repository members for any associated consistency group must reside on the same disk pool as the base virtual

disk.

You cannot add a virtual disk to a consistency group that is in a Failed state.

Removing A Member Virtual Disk From A Consistency Group

When removing a member virtual disk from an existing snapshot consistency group, you can also delete the repository
virtual disk members from the consistency group, if desired.
The remove command syntax is shown below:
set consistencyGroup ["consistencyGroupName"]

removeCGMemberVirtualDisk="memberVirtualDiskName"

[deleteRepositoryMembers=(TRUE | FALSE)]

The removeCGMemberVirtualDisk parameter is the name of the member virtual disk that you want to remove;
deleteRepositoryMembers determines whether the command removes all the repository members from the
consistency group.
To remove a virtual disk names payroll-backup from a consistency group named CGGroup_1, but preserve the repository
virtual disks:
set consistencyGroup ["CGGroup_1"] removeCGMemberVirtualDisk="payroll_backup"

deleteRepositoryMembers=FALSE;

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