User Guide

SAP AG November 2002
Backup
The following backups should be carried out for the SAP DB database system at regular
intervals:
• Data backup [Page
131]
• Log backup [Page
142]
All backups can be carried out on an individual backup medium [Page 150], and data backups
can also be carried out on a group of parallel backup media [Page
138].
The naming convention for a backup medium [Page 127] depends on whether you use an
external backup medium [Page 138].
• Name of standard backup medium [Page
145]
• Name of external backup medium [Page
145]
See also:
Backup Strategy [Page
39]
Data Backup
In a data backup, the contents of the data volume [Page 130] are backed up.
For the SAP DB database system, we differentiate between the following types of data
backup:
• Complete data backup [Page
40]
• Incremental data backup [Page
41]
Full and incremental data backups can be carried out in operating mode [Page 145] ONLINE
or ADMIN.
Data backups are always consistent in themselves. In the case of a recovery, in addition to a
data backup it may be necessary to have the relevant log backups [Page 142] in order to
restore the current state of the database.
Data backups can be carried out in parallel (Parallel Backup [Page
146]).
See also:
Backup Strategy [Page 39]
Saving Data Backups [Page
41]
Complete Data Backup
In a complete data backup [Page 131], all the pages of the data volumes [Page 130] are
backed up to the backup medium [Page 127] you specified.
See also:
Backup Strategy [Page
39]
Saving Data Backups [Page
41]
User Manual: SAP DB 40