You cannot have "migration" back to disk pool - TSM will not allow you to create closed loop of pools and pool of type DISK cannot be set as reclamation pool. You have to define pool over devclass of type FILE and set it as reclamation pool to the tape pool. And the size of file pool does not need to be large as for the disk one. Its size can be no larger than ammount of data to be reclaimed from a tape. Example: DLT 8000 with estimated capacity 80GB, reclamation threshold 60% gives 80GB*(100-60%)=32GB reclaimable data. If you are in heavy constraint you can shrink further reclamation pool but either reclamation will run in two passes or you have to increase reclamation threshold.
Zlatko Krastev IT Consultant Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] cc: Subject: Space reclamation to tapepool Hello TSM'rs I have a question. Here's my senario, We backup to disk. Then Migrate to tape once the backups complete. I have a single drive tape. the disk capacity is not enough to create another stgpool. I want to execute the processes of space reclamation to the tapes. Do I have some risk if it emigrates again from the tapepool to the diskpool for tapes with 2% use? That cautions should take? your assistance is greatly appreciated. Thanks, Carlos R. Bravo Arredondo [EMAIL PROTECTED] Tel. (55) 51741924
