What level are you setting for reclamation.  I have found that in a catch-up 
situation, it is best to set the reclamation level high (e.g. 99 or 98) and get 
the easy (almost empty) tapes first, and then step the value down over time 
until you get caught up to a level you want to be at.  This was with 
collocation on for both primary and copy pools so your experiences may be 
different.  But TSM spends time at the beginning of reclamation figuring out 
which tapes and the best way to process them ( I believe it tries to minimize 
tape mounts) so starting high makes that part of the process go faster.

David

>>> "Moyer, Joni M" <joni.moyer AT HIGHMARK DOT COM> 1/27/2010 8:53 AM >>>
Hello everyone,

For several years I had not been able to run reclamation on one of my tsm 
servers due to the lack of physical tape drives to accomplish the task.  I am 
in the process of trying to get caught up, but it seems that I just never do.  
Most of my issue is with the copy storage pool volumes which are very 
under-utilized.   It seems like reclamation, even if I start multiple 
reclamation threads, is taking quite a long time.

Is there some other way for me to get the data onto new media without doing 
reclamation?  Can I do a move data from 1 copy storage pool volume to the 
another volume within the same copy storage pool?  I know that this would mean 
bringing the tapes back from the vault, but it is just not progressing as I 
would like with the reclamation processes.

Any suggestions are greatly appreciated as I would like to get this back under 
control.

Thank you in advance!

Joni Moyer
Storage Administrator III
(717)302-9966
joni.moyer AT highmark DOT com 


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