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Example

The following example shows a typical backup schedule during which catalogs are regularly discarded to ensure that there are never more than 30 catalogs on the minidisk at any particular time.

You have specified that catalogs are created by backups run with these characteristics:

Backup frequency

Backup type

Auto-discard period

Monthly

Full

1 year

Weekly

Full

8 weeks

Daily

Incremental

14 days

These backups run on this schedule:

Monthly

First Saturday of each month

Weekly

Every Saturday except first Saturday of each month

Daily

Every day except Saturday

These characteristics and schedule ensure that the number of catalogs on the catalog minidisk at any one time is never greater than 30:

Type of backup

Number of backups

Schedule

Full backup

 

12

monthly catalogs

6

weekly catalogs (in 8 weeks, 2 of the weekly catalogs coincided with monthly full backups)

Incremental backups

12

daily catalogs (6 per week for 2 weeks)

TOTAL

30