Re-creating snapshot virtual disks, Snapshot rollback – Dell PowerVault MD3200i User Manual

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Configuration: Premium Feature—Snapshot Virtual Disks

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Re-creating Snapshot Virtual Disks

You can re-create a snapshot virtual disk that you have previously disabled.

CAUTION:

Possible loss of data redundancy – If the snapshot virtual disk is in

Optimal status, it is first disabled prior to being re-created. This action invalidates
the current snapshot.

Keep these important guidelines in mind when you re-create a snapshot

virtual disk:

• To re-create the snapshot virtual disks correctly, follow the instructions for

your operating system.

NOTE:

Failing to follow these additional instructions could create unusable

snapshot virtual disks. For more information, see the

PowerVault Modular

Disk Storage Manager online help topics.

• To use this option, the snapshot virtual disk must be either in an Optimal

status or Disabled status.

• When using this option, the previously configured snapshot name

parameters and snapshot repository virtual disk are used.

To recreate the snapshot virtual disk:

1 In the AMW, select the Logical tab, select a snapshot virtual disk.
2 Select Virtual Disk Snapshot Re-create.
3 Type yes, and click OK.

Snapshot Rollback

The snapshot rollback feature allows you to revert the contents of a virtual

disk to match a point-in-time image existing on a snapshot virtual disk.
During a rollback, the host server can still write data to the base virtual disk.

However, the snapshot virtual disk is set as read-only during the rollback

operation and becomes available for write operations immediately after the

rollback is complete. The snapshot virtual disk cannot be restarted, deleted,

or disabled during the rollback operation.

book.book Page 167 Tuesday, June 18, 2013 3:15 PM

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