Administrator's Guide

Recovering by Using Mirrored Volumes

If a mirrored volume fails due to media failure, you can recover the volume by taking the following steps:

1. View the status of the database and recovery log volumes (QUERY DBVOLUME or QUERY LOGVOLUME).

2. If necessary, place the failing volume offline from ADSM (DELETE DBVOLUME or DELETE LOGVOLUME). The server usually does this automatically.

3. Fix the failing physical device.

4. Allocate space to be used for a new volume (DSMFMT).

5. Bring the volume online (DEFINE DBCOPY or DEFINE LOGCOPY).

After a database or recovery log volume copy is defined, the server synchronizes the volume copy with its associated database or recovery log volume.