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Hi Michael Yes, the load/unload procedure is a kind of house cleaning feature. This is probably something that would result in about 100 messages in the list, but i'd suggest to do a unload/load at least once a year. Preferable, every quarter. However, as this is a time consuming procedure, normal installations, according to my experience, doesn't do this at all. Doing an unload/load procedure, can shrink your database up to half it's size(or more depending on how long you have been running). If you consider this, and compare to a harddrive, doing a seek on data placed on only half of the hardrive is much more faster than doing a seek on data placed on all of the harddrive. And, consider that TSM does this seek all day long, doing reclamation, backups of storagepools, migrations, restores and backups and so on... Yes, you can speed up your TSM installation doing a unload/load. Best Regards Daniel Sparrman -----------------------------------
Daniel Sparrman
Exist i Stockholm AB
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"Anderson, Michael - HMIS" <Michael_Anderson AT HMIS DOT ORG>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
2002-03-05 08:58 EST
Please respond to "ADSM: Dist Stor Manager"
To: ADSM-L AT VM.MARIST DOT EDU
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Subject: Unload DB question
I have been seeing some postings about the unload/load database
commands. I am a learn as you go tsmer, so
this has peeked my interest. I am in the process of cleaning up
some of the nodes that had resided in TSM. I was
wondering if the unload/load procedure is a maintenance like
procedure that should be done every so often, or if it
was a cure for a specific problem. I am running TSM 4.1.5 on aix
4.3.3 with a 14 gb database at 65% used
Thanks Mike Anderson
Michael_Anderson AT hmis DOT org
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