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Configuration: Premium Feature—Snapshot Virtual Disks 151
3
Remove the drive letter(s) of the source in Windows or unmount the
virtual drive(s) in Linux to help guarantee a stable copy of the drive for the
Snapshot. If this is not done, the snapshot operation reports that it has
completed successfully, but the snapshot data is not updated properly.
NOTE: Verify that the virtual disk has a status of Optimal or Disabled by
clicking the Summary tab and then clicking Disk Groups & Virtual Disks.
4
Follow any additional instructions for your operating system. Failure to
follow these additional instructions can create unusable snapshot virtual
disks.
NOTE: If your operating system requires additional instructions, you can find those
instructions in your operating system documentation.
After your host server has been prepared, see "Creating a Snapshot Virtual
Disk Using the Advanced Path" on page 148 to create the snapshot using the
advanced path.
If you want to use a snapshot regularly, such as for backups, use the Disable
Snapshot and Re-create Snapshot options to reuse the snapshot. Disabling
and re-creating snapshots preserves the existing virtual disk-to-host mappings
to the snapshot virtual disk.
Creating the Snapshot Using the Advanced Path
NOTE: Removing the drive letter of the associated virtual disk in Windows or
unmounting the virtual drive in Linux helps to guarantee a stable copy of the drive
for the Snapshot.
After first preparing the host server(s) as specified in the preceding procedure,
complete the following steps to create a virtual disk snapshot using the
advanced path:
1
Stop the host application accessing the source virtual disk, and unmount
the source virtual disk.
2
In the AMW, select the
Logical
tab, select a valid source virtual disk.
3
Select
Virtual Disk
Snapshot
Create
.
or
4
Right-click the source virtual disk and select
Create Snapshot Virtual Disk
from the pop-up menu.
The
Create Snapshot Virtual Disk Wizard - Introduction
dialog appears.
book.book Page 151 Wednesday, June 8, 2011 5:01 PM