ADSM-L

ADSM Restore Timings

1997-04-08 14:00:38
Subject: ADSM Restore Timings
From: William Kral <wkral AT TNE DOT COM>
Date: Tue, 8 Apr 1997 13:00:38 -0500
We are looking at ADSM for our enterprise backup system.... since we are 
looking at this, not only for everyday type restores, but for entire 
directory and server disaster recovery, my main concern is with restore 
timings. From what I've read and heard, ADSM will do the job and is very 
reliable. With ADSM as a primarily incremental package, if we had an 
NTserver with 6 gig of data on a 16 meg token ring network being backed up 
to an ADSM MVS server, I'm concerned that after a few months it would take 
an extremely long time to recover the entire server.

I would be interested on hearing anyone's experiences with major restores or 
directory restores using ADSM after the server has had a good amount of time 
to spread its incrementals over many tapes. We do plan on using tape silos.

I have heard that a 60 meg directory that may take 10 minutes with a 
full/differential philosophy, which we currently use, could take a 6 or 7 
hour jump in restore time because the data is spread on multiple tapes.

Is this fact or fiction is the question I have. I am aware of collocation... 


Anything would be helpful, thanks in advance.

Bill Kral
The New England
WKral AT TNE DOT COM
 
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