You may want to search the list archives on the issues with collocating an
offsite pool - it's not as easy/clean as you may be thinking.

While the customer may be OK with a corrupted file at the DR recovery, how
happy will they be if that's the one file needed to bring up the key
application in the environment?  What if the corruption of the file is the
reason for the disaster (not all DR's are because of environmental factors,
some are declared because of virus/malware/hacker activity, or other
unforeseen issues).

There are some corners that shouldn't be cut, and that one sounds a bit
risky to me.

Nick Cassimatis

----- Forwarded by Nicholas Cassimatis/Raleigh/IBM on 02/15/2007 02:11 PM
-----

"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> wrote on 02/15/2007
02:02:22 PM:

> For years I've been asked by my customers if they could have many
> versions for files in their primary pools while limiting the
> versions in their copy pools to 1 for disaster recovery.
>
>   In reading up on the new TSM V5.4 feature "Active-Only Storage
> Pools" it looks like this is now a reality. I could create an
> Active-Only storage pool (limited to backup data, no archive data).
> This new pool would now become my new destination pool for my backup
> storage pool command.  I could even go one step further and choose
> to collocate this data by node. The end result would be a set of
> tapes at DR that would not have to skip over any files when
> performing a restore.
>
>   I realize great consideration has to be done before implementating
> something like this because if the active file is corrupt you
> wouldn't be able to recover a previous version. Still, in the case
> of DR I know I have many customers that would accept the risk in
> order to reduce the amount of data they have offsite and to speed up
> their restores.
>
>   I know that you can set a tape in an active only storage pool to
> offsite so I'm assuming that it will be included with move drm.  I
> still haven't completed testing myself yet though.
>
>   I'm wondering if anyone out there is considering this as well?
>
>
> ---------------------------------
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