ADSM-L

Re: [ADSM-L] when a file has only inactive version in TSM server?

2009-09-17 09:48:36
Subject: Re: [ADSM-L] when a file has only inactive version in TSM server?
From: lindsay morris <lindsay AT TSMWORKS DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 17 Sep 2009 09:46:58 -0400
This is a good question, really.  We have found some fairly shocking
inactive-file statistics lately:

   * One customer had 98.6% of their 30 TB of TSM backups in INACTIVE
files.  Their policy was to "keep everything forever".
   * Another customer did full database dumps every day, and kept
them for 180 days.   They had about 90% of their 35 TB in inactive
backups.

Interesting that there is so much wasted storage.

(BTW, be careful if you try this at home.  This is the oft-mentioned
query of the contents tables that kills TSM performance.  ART trickles
in the data as it runs restore tests, so it does NOT kill TSM's
performance.)

------
Mr. Lindsay Morris
Principal
www.tsmworks.com
919-403-8260
lindsay AT tsmworks DOT com




On Sep17, at 9:07AM, Tchuise, Bertaut wrote:

When there is no active version of the file :-)

On a serious note, the TSM server will only have inactive versions
of a
file once the file is deleted from the client and the next incremental
backup runs.

BERTAUT TCHUISE
TSM/NetApp Storage Administrator
Legg Mason Technology Services
*410-580-7032
BTchuise AT leggmason DOT com

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
Behalf Of
Mehdi Salehi
Sent: Thursday, September 17, 2009 9:01 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] when a file has only inactive version in TSM server?

Hi,
when does a file have only inactive versions in TSM server?

Thanks

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