ADSM-L

Re: incremental / selective backup

2003-08-11 07:28:27
Subject: Re: incremental / selective backup
From: Richard Sims <rbs AT BU DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 11 Aug 2003 07:28:13 -0400
>Once more a question concerning the 'always incremental' backup behaviour of 
>TSM.
>
>I'm examining a TSM setup done by a thirth party and he has done something 
>strange.

Yes, he is clinging to the past...

>He performs a selective full backup in the weekend and the normal incremental
>backups during the week. But if a file A changes on friday and you take a 
>selective
>backup in the weekend, won't the file A be included in the incremental backup
>on monday as well? ...

No; incremental is always incremental.  Selective is "forcible backup".
The IBM Systems Journal article on TSM that I cited about a week ago goes
over "old thinking" concepts about backups vs. how TSM operates.

>I'll switch to an 'incremental' only backup, as this is how TSM was setup.

Good man, Kurt!

   Richard Sims, BU

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