Snapshot repository capacity – Dell PowerVault MD3200i User Manual

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Configuration: Premium Feature—Snapshot Virtual Disks

• The next available sequence number is based on the number of existing

snapshots of a source virtual disk. If you delete a snapshot virtual disk, its

sequence number becomes available again.

• You must choose a unique name for the snapshot virtual disk and the

snapshot repository virtual disks, or an error message is displayed.

• Names are limited to 30 characters. After you reach this limit in either the

snapshot virtual disk name or the Snapshot repository virtual disk name

fields, you can no longer type in the field. If the source virtual disk is 30

characters, the default names for the snapshot and its associated snapshot

repository virtual disk use the source virtual disk name truncated enough

to add the sequence string. For example, for Host Software Engineering

Group GR-1, the default snapshot name is Host Software Engineering GR-

1, and the default repository name would be Host Software Engineering

GR-R1.

Snapshot Repository Capacity

If you receive a warning that the capacity for the snapshot repository virtual

disk is approaching its threshold, you can increase the capacity of a snapshot

repository virtual disk by using one of the following methods:

• Use the free capacity available on the disk group of the snapshot repository

virtual disk.

• Add unconfigured capacity to the disk group of the snapshot repository

virtual disk. Use this option when no free capacity exists on the disk group.

You cannot increase the storage capacity of a snapshot repository virtual disk

if the snapshot repository virtual disk has any one of the following conditions:

• The virtual disk has one or more hot spare drives in use.
• The virtual disk has a status other than Optimal.
• Any virtual disk in the disk group is in any state of modification.
• The controller that has ownership of this virtual disk is currently adding

capacity to another virtual disk. Each controller can add capacity to only

one virtual disk at a time.

• No free capacity exists in the disk group.
• No unconfigured capacity is available to add to the disk group.

book.book Page 162 Tuesday, June 18, 2013 3:15 PM

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