IMS Database Forward Recovery

The process includes:

Preparing for Forward Recovery

1. Run the Image Copy utility to make backups of all databases.
2. Establish backup procedures to back up all databases at specified intervals moving forward.
3. Enable forward recovery log files and set a location for generated log files.
4. Establish backup procedures to back up all forward recovery log files at specified intervals moving forward.

Recovering IMS Databases

1. Do one of the following:
   • Run the Image Restore utility to restore selected databases; then run the Recovery utility without specifying any image copy databases. This applies the updates from forward recovery log files to the databases found in the current location.
   • Run the Recovery utility specifying image copy databases. This restores the image copies and then applies the updates from forward recovery log files to the specified databases.
2. Following each recovery done using the Recovery utility, always run the Image Copy utility to back up the recovered databases.