Storix Software SBAdmin TSM Edition Users Guide - Manual (Page 34)

this field, and do not indicate to use compression within your backup profile (default). Different compression
schemes work best on different types of data and sizes of files. You should therefore experiment with using
both TSM and SBAdmin compression options to determine which provides the best compression with the
least impact on the client system performance.
TSM Backup Read Permission
It is important to note the TSM Backup Read Permission field in the backup profile because this will
determine if the backup of this client (node) will be readable by another client (node). When a backup is
created, it is stored in a TSM filespace that corresponds to whether the backup should be private (owner-
access only) or shared (any node can access).
If node data should not be accessible between nodes, be sure to set this option to “Same client only”.
Otherwise, select “Any client”.
Note that if you have created a backup that you wish to have installed onto different nodes, such as system
replication (cloning), you must make that a shared backup. Otherwise, only the original node can access it.
Incremental Backup Level
Using this field, you may create incremental (or differential) backups of the system. An incremental backup
must be based on a level 0 (full) backup. Therefore, you must always perform a level 0 before any
subsequent levels.
If you do not plan to perform incremental backups, it’s best to leave this field blank
to avoid unnecessary time processing incremental information for the backup.
If you set this field to “0”, then a full system backup will be performed, from which you may base additional
incremental backups. Any number (1-9) indicates that you will be performing a new incremental backup,
which will be based on the previous backup level.
Note that you will not be able to perform any incremental backups (levels 1-9) until you have performed at
least one level 0 backup.
A Level 0 incremental (or a system backup without an incremental level) is the only
backup from which the system may be re-installed.
A system backup with no incremental level specification, or a system backup with incremental level 0, is
required to re-install a system. Only after the system is restored from this full system backup can you
restore additional incremental backup levels. Refer to
Incremental/Differential Backups for more general
information and examples.
Backup Retention Policy
By default, all backups will be retained or overwritten according to Backup Retention Policy set in the
Preferences section. However, certain backups or types of backups you may wish to retain for a longer
period of time. For example, you may want to retain a full backup taken at year-end for several years, while
a daily backup (replaced on a daily basis) may only need to be retained for a week. Rather than choosing to
retain a backup for a certain number of days, you can also choose to retain a certain number of backups of
the same job.
If you set a retention policy in the profile settings, it will override the policy set forth in the Preferences. If
you choose to
customize a profile for a specific job , it will apply only to backups created by that job and will
override the policy for both the main profile and in the Preferences section.
Storix System Backup Administrator 34 Version 8.2 TSM Edition User Guide