Dell PowerVault MD3000 - Manual (Page 83)

Snapshot Virtual Disks 83
To disable a snapshot virtual disk:
1 Click the Modify tab, then click Modify snapshot virtual disks.
2 Click Disable Snapshot Virtual Disks.
3 Highlight the snapshot virtual disk to be disabled and click Disable
beneath the list.
4 In the Confirm Disable Snapshot Virtual Disk dialog box, type yes and
then click OK.
The snapshot virtual disk is disabled. The associated snapshot repository virtual
disk does not change status, but copy-on-write activity to the disabled
snapshot virtual disk stops until the snapshot virtual disk is re-created.
Preparing Host Servers to Re-create a Snapshot Virtual Disk
NOTICE: Before you create a new point-in-time image of a source virtual disk, stop
any data access (I/O) activity or suspend data transfer to the source virtual disk and
snapshot virtual disk to ensure that you capture an accurate point-in-time image of
the source virtual disk. Close all applications, including Windows Internet Explorer,
to make sure all I/O activity has stopped.
NOTE: Removing the drive letter of the associated virtual disk in Windows or
unmounting the virtual drive in Linux will help to guarantee a stable copy of the
drive for the Snapshot.
Before re-creating a snapshot virtual disk, both the host server and the
associated virtual disk you are re-creating have to be in the proper state.
Perform the following steps to prepare your host server and virtual disk:
1 Stop all I/O activity to the source and snapshot virtual disk (if mounted).
2 Using your Windows system, flush the cache to both the source and the
snapshot virtual disk (if mounted). At the host prompt, type
SMrepassist -f <filename-identifier>
and press <Enter>. See "SMrepassist Utility" on page 108 for more
information.
3 Click the Summary tab, then click Disk Groups & Virtual Disks to ensure
that the snapshot virtual disk is in Optimal or Disabled status.