ADSM-L

Re: Archives vs Back-up sets

2004-09-20 12:06:36
Subject: Re: Archives vs Back-up sets
From: "Warren, Matthew (Retail)" <Matthew.Warren AT POWERGEN.CO DOT UK>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 20 Sep 2004 12:43:56 +0100
One simple approach that has been very effective in reducing the DB
impact when archiving lots of small files for me has been to simply
ensure the archived files a tar bundled before sending them to TSM.


Matt.




Man Makes The Machine.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Stapleton, Mark
Sent: Friday, September 17, 2004 8:49 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Archives vs Back-up sets

From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On 
Behalf Of Mike Hagery
>TSM-server AIX 5.2, TSM 5.1.7.3, 3494 library 3590 drives. No 
>tapes are checked out of the library, data is copied to a 
>remote 3494 library
>
>Our database is growing very fast. For some reasons we have 30 
>clients that archives every 4 weeks a lot of small files. In 
>my opinion it is filling up the database, because every file 
>is having an entry in the database. We noticed that the 
>archives have never been retrieved so far, and we know that it 
>is not archived for government-purposes. The retention period 
>is only 3 months.
>
>Now, I was thinking of making back-ups sets in stead of 
>archives, because it is only one entry in the database and 
>there is no extra processing needed on the client (only back-up)

That should alleviate your database size, since entries written to
backupsets are not stored in the database. What it *will* do is start to
eat up tapes, since it is one node's backupset=1 tape.

Remember that you cannot browse a backupset. If you ever do restore
something from a backupset, you'll either have to use the QUERY
BACKUPSETCONTENTS command to find the exact directory and file to
restore, or restore the entire contents of the backupset.

--
Mark Stapleton (stapleton AT berbee DOT com)
Berbee Information Networks
Office 262.521.5627  


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