PrimeArray 4xxx, User Manual, Page: 131 / 208

Snapshot – Fast Point-In-Time Copies
October 10, 2004. Another method is to set schedules to create
snapshots regularly. Moreover, the NAS server will create
snapshots automatically when doing tape backup, SmartSync
and CD/DVD-burning tasks. Then it reads in source data from
the automatically created snapshots, instead of the current
active file-system, to prevent the open-file issue.
Deleting Snapshots
To delete snapshots, check the check-boxes in the
List of
Snapshots table and click the Delete icon to delete the
selected snapshots. You can make multiple selections to
delete several snapshots at a time. The NAS server will delete
the snapshots one by one.
Snapshot Roll-back
Snapshot roll-back is to restore the volume to the state when
the selected snapshot was taken. Snapshot roll-back is useful if
most data are lost or destroyed by virus attacks or human
errors. Snapshot roll-back is much faster than restoring from
tapes. Please note that the roll-back operation is dangerous
because the whole volume will be restored to the previous
state. If you want to restore only part of the data, please simply
copy them from the .snap folders to the current file-system.
Snapshot Scheduling
To manage snapshot schedules, please open the
administration page. Enter the Backup Snapshot Schedule
page.
To add a snapshot schedule, either click the
Add Schedule
icons next to the volume names, or click on the Add Schedule
button on the bottom of the page.
To delete snapshot schedules, check the check-boxes to the
right and click the
Delete icon.
To modify a snapshot schedule, click the hyperlink of the
snapshot schedule in the
Schedule column.
Chapter 9
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