Preparing for a Partial-System Warm Restore (ontap (SAP Library - SAP Database Guide: Informix (BC-DB-INF-DBA))

Preparing for a Partial-System Warm Restore (ontape)

Use

This section describes what you need to do before performing a partial-system warm restore of your Informix database if you use ontape as your data recovery tool (that is, for your archives and backups).

Procedure

Before you start the restore, gather all tapes containing the most recent level-0, level-1, and level-2 archives containing the dbspace(s) you want to restore.

Identify the tapes that contain the logical-log files backed up since this level-0 archive. If you want to restore level-1 or level-2 archives, you need to find only the logs backed up since the most recent archive (with the highest level).

Make sure that the current database server configuration is compatible with, and accommodates, all parameter values specified in the ONCONFIG file after the most recent archive. Use the copy of this file that was in use at the time of the archive.

All raw devices or files that have been used since the level-0 archive must be available. Changes might include, for example, chunks added, dbspaces dropped, dbspaces mirrored and so on.

For more information, see the Informix documentation.

Result

Now you can go on to Performing a Partial-System Warm Restore (ontape).

See also:

Informix documentation