Storix-software SBAdmin User Guide Manuale Utente Scaricare il pdf (Pagina 141)

Backup Retention Policy

The backup retention policy (also referred to as the overwrite policy) determines whether or not a new backup

should be allowed to write over (thereby destroying) a current backup. A current backup is defined as one with a

backup label currently on record. The default policy for tape backups is to prevent accidental overwriting by

requiring the user to manually expire a current backup before the same tape may be reused. The default policy

regarding disk backups is to keep all disk backups on file unless explicitly expired (and removed) by the user.

This option allows you to define the global backup retention policy. This will apply to all backup jobs unless you

explicitly change the backup retention policy for a particular backup job. Refer to the Backup Retention Policy in

the

Backup Profile settings for more information on overriding the global backup retention policy.

To change the global backup retention policy, select File!Preferences!Backup Retention Policies from the

menu bar. The following screen will appear:

Tape Backups

Before any backup is performed to tape, the backup label is read. If a prior backup exists, a check is made

to see if the backup label is still on file. If so, the setting applied here will determine the action that will be

taken:

1. Never automatically expire or overwrite a backup tape. User must manually expire all tape

backups.

Select this option if no data will be written to the tape and the backup will fail with an error message. In

order to overwrite the backup, the user must expire the backup manually. Refer to

Expiring a Backup

for the steps to expire a backup.

2. Automatically expire and OVERWRITE a prior tape backup that is at least: __ days or older.

Select this option if the backup will proceed ONLY if the backup to be overwritten is at least the

specified number of days old. You can always allow expiration and overwriting of a prior backup

tape by setting this value to 0. If the backup currently on the tape is less than the specified number of

Storix System Backup Administrator 141 Version 8.2 User Guide

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Storix-software SBAdmin User Guide Manuale Utente Pagina 141