Persistent Images - IBM TotalStorage NAS 300 User Reference

10. To change restore options, select Tools from the menu bar at the top of the
11. After you select the files or directories for restore, the alternate location, and
12. At the prompt, confirm that you want to begin the restore. Click Advanced to

Persistent Images

A persistent image is a copy that you make of one or more file system volumes at a
specific time. You can use the Persistent Images function to restore a file or volume
to the state it was in at the time that you created the persistent image. Persistent
images are maintained in a way that minimizes the storage required to keep
multiple copies of the volume. This is done by using a copy-on-write technique that
uses, for each volume, an area of pre-allocated storage (the PSM cache file) that
keeps only those data blocks that have been written since the time you made a
persistent image of the volume.
Persistent Storage Manager (PSM) allows you to create and preserve images of the
NAS Gateway 300 drives. You can take a persistent image immediately or schedule
persistent images as one-time events or regularly repeated events.
You can access the PSM tasks in the Disks/Persistent Storage Manager task group
within the Windows 2000 for Network Attached Storage user interface in one of two
ways:
v Open the IBM NAS Admin console on the appliance desktop and select
v Start the Windows 2000 for Network Attached Storage user interface directly.
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NAS Gateway 300 User's Reference
2. Click Restore Wizard; then click Next. You are asked what you want to
restore.
3. Select the appropriate media that you are restoring from.
4. If you are restoring from tape, expand the backup media pool name, and then
double-click the media (this will normally be named media created on {date -
time}. This action will read the set list from the tape.
If you are restoring a file, select Tools → Catalog a backup file, then click
Browse and find the backup file (.BKF) created for this backup.
Note: If you do not know the .BKF file name, refer to the backup log in NAS
Backup Assistant.
5. Click OK. You will now have a Media created on {date - time} listed under file.
6. Click the plus sign (+) to the left of this media to see the set list. You might be
prompted to enter the path to the file that you want to catalog; if so, select the
same file that you just imported. This will build a set list.
7. Select the files and directories to restore.
8. Select Alternate Location from the Restore files to: pull-down.
9. In the alternate location window, select the root directory of the original backup
drive letter that you determined (see the note on page 61).
window, and then select Options. Refer to NT Backup online help (see
Restore files from a file or a tape) for use of these options.
options, click Start Restore.
select advanced options (see the NT Backup online help for details); then click
OK to begin the restore.
Persistent Storage Manager. This automatically launches the Windows 2000 for
Network Attached Storage user interface and brings up the Disks/Persistent
Storage Manager page containing the PSM tasks.