Thanks Remco, VTL needs disk space to provide virtual cartridges and my concern is the availability of this disk space. You are right! Backup data availability could be addressed in higher levels like TSM copypools, but I am looking for inherent disk availability features in IBM VTLs' architecture. For instance, if an XIV box is connected to TS7680, what happens if the XIV explodes?
Thank you, Mehdi
