"The number of cartridges in use by the pool goes up and up" Do you have collation on? Check stgpool with f=d, if you don't have Collocate Set to NO it will default to Group then if no Colo Group exists it defaults to Node. So every Client Filespace gets a tape.
-----Original Message----- From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Keith Arbogast Sent: Thursday, March 10, 2011 2:47 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Does Move Data recover space on virtual volumes? My specific problem is with a tape pool that is a target for virtual volumes created by a remote TSM server. The number of cartridges in use by the pool goes up and up, at a faster rate than the data growth on the remote server. I suspect there are many virtual volumes in the target pool with not many active files left on them. My understanding is that even one active file in a virtual volume keeps all the space used by it on a tape from being reclaimed. So far, my only resort seems to be to do MOVE DATA on virtual volumes with log pct_utilization, using 'reconstruct=yes'. That won't be efficient or fast. If I am missing something, please let me know. My thanks to all who have offered suggestions so far, Keith This e-mail, including attachments, may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this e-mail is not the intended recipient or his or her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this e-mail is prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and delete this e-mail immediately.