A CA VM:Backup catalog is a set of CMS files that the product creates and maintains to store information about backed-up data. Although CA VM:Backup catalogs are optional, the product uses a catalog to determine what data has changed since a previous backup. Therefore, catalogs are required for incremental backups. Catalogs are kept online and quickly provide CA VM:Backup with the information that is needed to locate data to restore.
In the Catalog Guidelines section of the Work with Backup Template template screen, specify the following information:
To specify whether CA VM:Backup is to create a catalog for the data it backs up, select Yes or No in the Create a Catalog field.
CA VM:Backup creates a catalog. This option is the default.
CA VM:Backup does not create a catalog.
To specify the level of catalog detail, select one of the following options in the Detail Level field of the Catalog Guidelines section:
CA VM:Backup creates a catalog that contains information about each file, alias, CKD track, or FBA block backed up from each minidisk and file space.
CA VM:Backup contains general entries for each minidisk and file space that is backed up. This option is the default.
In the Auto-Discard Period field, specify the number of days you want CA VM:Backup to retain the catalog after the backup is run. CA VM:Backup automatically discards the catalog when the time period you specify elapses and the automatic discard process is run. Any catalogs that are based on this catalog are also discarded. For more information about when CA VM:Backup runs the automatic discard process, see the "AUTOCAT Record" section in the System Programmer Reference Guide.
To specify the number of days to retain the catalog, enter a whole number from 0 through 5000 in the Auto-Discard Period field. The number of days you specify must be greater than or equal to the number of days you specify in the Auto-Condense Period field. Zero (0) indicates that the next run of the automatic discard process is to discard the catalog. The default auto-discard period is 30 days.
To retain the catalog longer, extend the retention period by specifying a new auto-discard date on the Manage Existing Catalogs screen. If you extend the auto-discard date, also extend the tape expiration date. For details on updating the auto-discard period and tape expiration date, see Updating Catalogs.
Condensing catalogs refers to converting file-level detail catalogs to domain-level detail catalogs. In the Auto-Condense Period field, specify the number of days that CA VM:Backup is to retain file-level detail in the catalog after the backup is run. CA VM:Backup automatically condenses the catalog when the time period you specify elapses and the automatic condense process is run. Any catalogs that are based on this catalog are also condensed. For more information about when CA VM:Backup runs the automatic condense process, see the "AUTOCAT Record" section in the System Programmer Reference Guide.
Enter a whole number from 0 through 5000 in the Auto-Condense Period field. This value specifies the number of days to retain file-level detail in the catalog. The number of days must be less than or equal to the number of days that you specify in the Auto-Discard Period field. Zero (0) indicates that the catalog is to be condensed the next time the automatic condense process runs. The default auto-condense period is 15 days.
To retain the file-level information longer, extend the retention period by specifying a new auto-condense date on the Manage Existing Catalogs screen. For details on updating the auto-condense period, see Updating Catalogs.
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