ADSM-L

Re: Database Cleanup

2003-06-02 16:22:35
Subject: Re: Database Cleanup
From: Richard Sims <rbs AT BU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 2 Jun 2003 16:22:12 -0400
>I noticed that after awhile, my database gets quite large.  Assuming that
>it's consistent, unloaddb/loaddb seems to compress out all of the junk and
>makes it much smaller.  Is there a way to check the database for how much
>space might be recovered by doing an unloaddb/loaddb?  Currently, I'm at
>about 100GB.

A frequently asked question.  There is no "junk" in the database.  What you
are achieving, at the expense of downtime and some jeopardy, is a short-lived
compaction of the data in the database.  Reasonable Policy definitions,
expiration, and disposal of obsolete filespaces is the ultimate salvation for
a TSM database.  Don't get into the habit of doing unloaddb/loaddb.  As the
expression goes, "It's a database...".

   Richard Sims, BU

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