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 Backup ID 

The database system automatically gives each backup a backup ID to allow them to be identified. This label uniquely identifies the backups made since the database instance was created or last initialized. If you use external backup tools, then the backup is given an external backup ID.

The backup ID consists of the backup type <save_type> (complete or incremental data backup or log backup) and a sequential number <sequence_no>. Data backups are numbered sequentially, regardless of whether they are complete or incremental. Log backups are numbered in a separate sequence.

After the backup, the backup ID is written to the Database Manager log file dbm.knl. You can display all the contents of this file in the backup history. When you recover data, you can view the backup history with the Database Manager and select the required backup using its backup ID.

If the backup medium is a tape, write the backup ID on the sticker of the tape at the end of the backup.

Formal Description of the Backup IDs

<backup_id>  ::=<save_type>_<sequence_no>

<save_type>  ::=  DAT | PAG | LOG

<sequence_no>  ::=  <number>

 

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