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NetBackup System Administrator’s Guide - Windows NT Server
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To allow mixing of retention levels on volumes, set the NetBackup
configuration option,
ALLOW_MULTIPLE_RETENTIONS_PER_MEDIA
. See
“NetBackup Properties” on page 132 for more information.
If you keep only one retention level on each volume, do not use any more
retention levels than necessary. This consumes resources and also increases the
number of volumes required.
Frequency
Note:
Frequency does not apply to user schedules because the user can
perform a backup or archive whenever the backup window is open.
Specifies how much time can elapse between successful automatic backups for
clients on this schedule. For example, assume that you set up a schedule for a
full backup with a frequency of one week. If NetBackup successfully completes
a full backup for all clients on Monday, it does not attempt another backup for
this schedule until the following Monday.
To set the frequency, click in the Frequency box and either type a number or
use the arrows to select a value. Click the box that is on the right under
Frequency to select units of hours, days, or weeks.
Backup Frequency Determines Schedule Priority
If more than one automatic schedule is due for a client within a class, the
backup frequency determines the schedule NetBackup uses:
• Jobs from the schedule with the longer period between backups always
takes precedence. For example, a schedule with a backup frequency of one
year has priority over a schedule with a backup frequency of one month.
• If full and incremental schedules have the same backup frequency and are
both due for the same client, jobs from the full get precedence.
For example, NetBackup prioritizes the following three schedules in the order
shown:
1. monthly_full (frequency is one month)
2. weekly_full (frequency is two weeks)
3. daily_incremental (frequency is one week)
NetBackup 3.2 System Administrator's Guide for Windows NT
NetBackup 3.2 System Administrator's Guide for Windows NT
