ADSM-L

Re: PIT Restore

2001-05-04 13:06:59
Subject: Re: PIT Restore
From: "France, Don G (Pace)" <don.france-eds AT EDS DOT COM>
Date: Fri, 4 May 2001 12:07:26 -0500
Sure... do weekly incrementals (instead of or in addition to daily)... use a
different node name (eg, client1 and client1_we, like we do for TDP agents -
as in client1 and client1_SAP or client1_EXC).  That would ensure you have
your 8 weekly "snapshots", given 8 week retention (RE=60), VE=8, VD=8,
RO=60...

This would seem the most obvious, and *simple* answer - simple is almost
always superior to convoluted approach (easier to understand, explain &
maintain!).


 -----Original Message-----
From:   Sergio Cherchyk [mailto:scherchyk AT BANCORIO.COM DOT AR] 
Sent:   Thursday, August 03, 2000 2:39 PM
To:     ADSM-L AT VM.MARIST DOT EDU
Subject:        PIT Restore

Hi *SM'ers.

I have to handle PIT restores for 10 servers (SUN Solaris), for which I
could be asked to perform restores of point-in-time conditions existing
60 days ago.
Since I don't know how often the files in these servers are updated, I
understand that I have to define a Copy Group with a Versions Data
Exists option set to 60 or so.
Actually, the backup requirements for the servers don't imply
necessarily to have PIT restores available in a daily basis, but in a
weekly one. I mean, I will not be supposed to be asked for a restore of
July1st, but one from the first week of July (in any available day). So
that, I would not need to store 60 version of a given file, just eight
of them, providing that each copy belong to a different week (of course,
this would be only in case that they ARE modified).
Is there a way to guarantee the existence of just one version of a file
per week?
I'm trying to avoid using ARCHIVE because many of these files could be
not modified at all during the 60 day period, but if it is not a better
option, I think that ARCHIVE will be better than backup lots of version
of lots of files.
I'm using TSM V3.7.2 in an AIX 4.3.2 server.
I'm also exploring the option to use BACKUP IMAGE to backup the needed
file systems, once a week and then daily incremental backups. My concern
is that I've never used this command before, so I would like to know if
anybody of you is using it to backup file systems and which are the
limitations of doing so.
Thanks in advance.

--------------------------------------------
Sergio R. Cherchyk
Sergio R. Cherchyk
Arquitectura Tecnológica - Midrange
Banco Río de la Plata S.A. - Grupo BSCH
Mire 480, 2do piso - 1036 Cap. Fed.
Argentina
Tel. (054)-11-4341-1643
Fax. (054)-11-4341-1264
--------------------------------------------
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