Comments on: Why is TSM reclamation a slow and clumsy process? http://www.tsmguru.com/tips-tricks/why-is-tsm-reclamation-a-slow-and-clumsy-process.html?utm_source=rss&utm_medium=rss&utm_campaign=why-is-tsm-reclamation-a-slow-and-clumsy-process TSM Guru Blog covers all your Tivoli Storage Manager backup software needs Wed, 01 Feb 2012 05:14:12 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Steve http://www.tsmguru.com/tips-tricks/why-is-tsm-reclamation-a-slow-and-clumsy-process.html/comment-page-1#comment-1512 Steve Wed, 28 Oct 2009 01:02:57 +0000 http://www.tsmguru.com/?p=205#comment-1512 The easiest reclamation is the one you don't do. Keep sufficicent free slots and tapes so that data expires naturally. Also separate database backups that will expire in strict time sequence into their own pools that do not run reclamation. The easiest reclamation is the one you don’t do. Keep sufficicent free slots and tapes so that data expires naturally. Also separate database backups that will expire in strict time sequence into their own pools that do not run reclamation.

]]> By: Robert http://www.tsmguru.com/tips-tricks/why-is-tsm-reclamation-a-slow-and-clumsy-process.html/comment-page-1#comment-1414 Robert Fri, 09 Oct 2009 11:59:33 +0000 http://www.tsmguru.com/?p=205#comment-1414 I have greatly increased the efficiency of reclamation by scripting it so the easy/fast to reclaim tapes get done first. I have greatly increased the efficiency of reclamation by scripting it so the easy/fast to reclaim tapes get done first.

]]> By: Chip http://www.tsmguru.com/tips-tricks/why-is-tsm-reclamation-a-slow-and-clumsy-process.html/comment-page-1#comment-1374 Chip Tue, 29 Sep 2009 13:33:13 +0000 http://www.tsmguru.com/?p=205#comment-1374 Another issue is that those tapes which have less reclaimable space take longer to reclaim. If I've run into any issues that have caused my reclamation process to fail and I need to reclaim a lot of tapes, I'll do the following steps. First, run a query for how many tapes there are above the 50% threshold and then on higher numbers (I usually start at 95%). If there is a good number of reclaimable tapes above 95, then I'll just run the reclamation on those tapes which will get done pretty quickly.. then I'll move on to lower numbers thus forcing the quicker reclamation processes to finish first. Here are the queries and commands I use: select count(*) as EMPTY_VOLUMES from volumes where STATUS='EMPTY' SELECT count(*) FROM Volumes WHERE PCT_RECLAIM>50 SELECT count(*) FROM Volumes WHERE PCT_RECLAIM>95 reclaim stgpool 3584STGPOOL threshold=95 dur=840 Another issue is that those tapes which have less reclaimable space take longer to reclaim. If I’ve run into any issues that have caused my reclamation process to fail and I need to reclaim a lot of tapes, I’ll do the following steps. First, run a query for how many tapes there are above the 50% threshold and then on higher numbers (I usually start at 95%). If there is a good number of reclaimable tapes above 95, then I’ll just run the reclamation on those tapes which will get done pretty quickly.. then I’ll move on to lower numbers thus forcing the quicker reclamation processes to finish first. Here are the queries and commands I use:

select count(*) as EMPTY_VOLUMES from volumes where STATUS=’EMPTY’
SELECT count(*) FROM Volumes WHERE PCT_RECLAIM>50
SELECT count(*) FROM Volumes WHERE PCT_RECLAIM>95
reclaim stgpool 3584STGPOOL threshold=95 dur=840

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