Re: [ADSM-L] Good or bad idea?...offsite disk.

2007-04-02 11:56:17
Subject: Re: [ADSM-L] Good or bad idea?...offsite disk.
From: Lawrence Clark <Larry_Clark AT THRUWAY.STATE.NY DOT US>
Date: Mon, 2 Apr 2007 11:55:44 -0400
We have two sites. The 2nd site has primary storage, the primary
copypools. Both are currently in tape libaries.

We do plan to move the primary storage pools to SATA drives on a

We did try migrateing the copypools to SATA drives but I found the
setup very awkward. Primary pools can be random storage, copypools can
only be disk based if they simulate drives.

What I found was when it reached the end of the disk 'volume' it
generated a write error on the 'volume' and then allocated another
volume and continued. However, this meant reseting the volumes that
reached the maximum volume size each morning.

The problem with mirroring primary storage pool is a delete on one is
an immediate delete on the mirror.

>>> jlea AT DIS.UMSMED DOT EDU 04/02/07 12:31 PM >>>
One of my TSM servers is using disk only for onsite pools and tape for
offsite.  I am considering putting a SAN offsite to mirror my onsite
diskpools thereby doing away with tape all together.  This server has
about 12TB of storage.  I have a dedicated fiber link to my offsite
Is this a good or bad idea?  I understand that DRM won't be in effect
any longer.  Client restores would be more readily available if needed
but what about the database?  Any considerations or recommendations
there or elsewhere?


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