Recovery 

Use

The Database Manager supports the restore or recovery of the database after hardware errors. The last state of the database is restored or recovered.

Prerequisites

All the backup history data is available.

Procedure

To obtain the highest possible throughput of data, complete and incremental data backups can be retrieved from a number of backup media simultaneously. The number of parallel media in this case does not depend on the number of parallel media used to make the backup originally. Even a backup made to single medium plus continuation media can be restored in parallel.

You can set the maximum number of backup devices that can be retrieved from simultaneously with the database parameter MAXBACKUPDEVS. The use of up to 32 tape devices allows you to reduce backup and restore times considerably.

The Database Manager GUI always suggests the quickest way of effecting a restore. Data backup(s) are restored at the outset in this case and these are followed firstly by incremental backups and then by log backups .

Log backups cannot be read in parallel.

Restore Processes

Continuing an Interrupted Restore

Restoring a Backup from the Backup History

Restoring the Indices After a Database Restore

Restoring the Last Complete Backup

Restoring an Existing Database Instance

Recovering a Mirrored Devspace

Restoring with an Automatic Tape Loader

Restoring with External Backup Tools

Restoring Without a Backup History