We have run into a database corruption. Some errors occured in a cache diskstorage pool, resulting in server crashes. We definitetly need to do an audit db with fix=yes. This volume has a capacity of 50GB. In case the full volume had database errors, IBM estimated the time for completion of the audit db process in our case to take about 150(!) days (based on timestamps, on newer machine you can reach about 4 times the speed, that would still be more than one month). TSM cannot be used while processing the database audit. We are running the process since June, 15th. IBM is not able to provide any other way to repair the database, dsmserv audit db is considered the only way. The reason for database corruption can't be determined. Again: we can't use our backup service since nearly two weeks! NEVER USE LARGE VOLUMES!