Hi everyone, We've been using SQL-Backtrack (was Datatools, now BMC... trying to get all those key words in to help those future searches ;-) successfully for many years now to backup Sybase. Recently one database has grown so large so as to exceed the maximum file size allowed at our current level of AIX when it is dumped for backup. For this reason and to try and maximize performance we want to implement dump striping. The documentation on this, however, with respect to using the ADSM/TSM OBSI module is vague at best and has left us a little confused. It states that separate management classes must be used for each stripe, and that these must reference separate tape pools, but it is not clear if these "pools" are the Backtrack pool definitions or the actual TSM storage pools. Does anyone have experience in implementing this? Do we indeed need separate management class definitions, or just a MC that points to a tape pool using a DevClass that has multiple mount points available? And I'm assuming in this case that collocation would need to be OFF for this tape pool. Any advise would be appreciated. TIA - Scott PS: The folks at BMC support can reference Case 444873. Scott McCambly AIX/NetView/ADSM Specialist - Unopsys Inc. Ottawa, Ontario, Canada (613)799-9269