Manually expiring a backup, Automatic expiration of backups – Storix Software SBAdmin User Guide User Manual
Page 104
Once a backup label has been expired, it will not be possible to verify or restore data
from this backup using the Backup Administrator application. However, you will still
be able to reinstall a system from a System Backup even if it has been expired. If a
backup has been expired or the label history has been inadvertently removed from
the system, it is still possible to rebuild this information. Refer to
for details.
Very important note: If you expire a backup that was written to disk, rather than tape,
the actual disk backup will be removed from the
backup server
. You are given ample
warning before the backup is removed, and once it has been removed it will no
longer be possible to access that data.
Manually Expiring a Backup
To manually expire a backup, first perform any one of the various methods to
. Then
select the
Expire/Remove
button at the bottom of the screen.
Automatic Expiration of Backups
The
determines if and when an old backup may be overwritten by a new backup.
Any time an old backup is overwritten by a new one, the previous backup label must be expired as the data
the label points to will no longer exist.
For tape backups, if the Tape Overwrite/Retention Policy has been set to allow current labels to be
overwritten by new backup jobs, the backup being overwritten will be automatically expired, allowing the
tape to be overwritten by a new backup.
For disk image backups, expiring the backup label also means removing the actual backup image files from
the disk on the server. The Disk Backup Retention Policy determines when a prior backup can be
automatically expired.
In either case, the retention policy only applies when writing a new backup using the same backup job.
When this occurs, the policy may allow:
1. No backup to be expired, removed or overwritten without
2. Any backup to be automatically expired and overwritten
3. Expiration of backups that are older than a certain number of days
4. Expiration of a backup only if there are a minimum number of un-expired backups of the same job
remaining.
Storix System Backup Administrator
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Version 8.2 User Guide