All log volumes in a database instance are known collectively as the log area. The log area contains all information required in addition to the data backups, to restore the database instance to a consistent state after an error has occurred.
The log area is overwritten cyclically, since a full log area would cause the database to shut down. You must, therefore, make regular log backups. To monitor the filling level of the log area, you can use the Database Manager GUI, for example.
For the security of your data, we recommend that you mirror the log area. If hardware-based mirroring is not possible, you can set the log mode accordingly.
See also:
· Database Manager GUI, Displaying Log Area Information
· Concepts of the Database System, Logging Transactions and Log Backup
·
Database Administration in CCMS: MySQL
MaxDB, Checking Available Log
Space
·
User Manual: SAP liveCache, Monitoring the
Log Area