Each database backup volume contains a Tivoli® Storage Manager backup series number in the volume header. A mis-matched backup series number indicates that this volume is either corrupted or not suitable for restoring the database.
The server does not process the DSMSERV RESTORE DB command.
Check the volume history file to make sure this volume is valid for a database backup operation. If the volume is valid, the volume history file can be modified to match this series number and you can reissue the DSMSERV RESTORE DB command. If the problem persists, this volume may be corrupted. Restore the database to a different time using a different set of backup volumes.