ADSM-L

Re: Adaptive Subfile backups

2005-06-09 15:14:28
Subject: Re: Adaptive Subfile backups
From: Steve Roder <spr AT REXX.ACSU.BUFFALO DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Thu, 9 Jun 2005 15:14:15 -0400
Anyone know if this can work for TDP Agents, like Domino?

> Works great, less filling!
>
> It's pretty simple to set up, just turn on at the server with a SET,
> then a couple of parms to set in the dsm.opt file (or a client option
> set on the server).
>
> I haven't used it since the 4.2 client/server, don't have those
> WAN/desktops to back up anymore.
> But at one time I was using it on LAN desktops as well, because a huge
> chunk of my backups were large (500MB-1GB) .pst files that changed
> daily.  Subfile backup changed those to BLOCK backups instead - saved a
> huge amount of work daily.
>
> I don't back up those machines any more, or I wouild still be using it.
> Never had any problem doing restores, and we did several full bare-metal
> restores.
>
> Only gotcha is that you may want to think twice if you are NOT using
> collocation.  With subfile turned on, for every file you want to restore
> you have to restore 2 files:  the base file and the delta file.  If you
> are using collocation you won't notice; if you aren't using collocation
> that means 2 tape mounts instead of 1.
>
> Also, I believe the upper limit on file size for subfile backups is
> still 2GB?
> Anything files larger than that, get sent in toto.
>
> Try it, you'll like it!
> Wanda Prather
> "I/O, I/O, It's all about I/O"  -(me)
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> William Sherrill
> Sent: Thursday, June 09, 2005 9:35 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Adaptive Subfile backups
>
>
> Is anyone using adaptive subfile backups?  I have some remote servers
> that
> back up over the wan and was wondering if this method would help and
> what
> could be some of the adverse effects.
>
> Bill Sherrill
>
>

Steve Roder
University at Buffalo
(spr AT buffalo DOT edu | (716)645-3564)

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