I think the first question id 45GB restored in 5Hours, that's 5 GB hour
/ 1.3MBS Second... What kind of Tape Drive are you using, is it on its
own HBA (Don't Mix Disk / Tape I/O down same path)  

Sounds like you have an I/O challenge.  As far as the Idea below, never
tried, but take in consideration that if the TSM DR box is in a
different geographical location you'll have to use FCIP or Disk Frame
replication to gain access to those volumes.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Neil Sharp
Sent: Monday, February 04, 2008 10:28 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] TSM DR restore query

Hello I was wondering if anybody could help or advise with the following
question.

I need to devise a solution to speed up DR for one of my customers.
Currently their DR solution is the classic restore from TSM DB tape and
then load all of the off site tapes into the DR library and then perform
the client restores. The problem is that the TSM DB restore can take in
the region of 5 hours. The TSM DB is 45GB.

I was thinking of using the following method. Can any one see any issues
with this?

*On the primary TSM server:*

They have a Windows 2003 Standard Edition TSM server. I am proposing
that we set up TSM DB and log mirroring, one copy on local disk and the
second copy on SAN attached disk.

*On the DR site:*

They also have a TSM 2003 Standard Edition TSM server. When DR is to be
tested / invoked, I would propose that they re-zone the DR TSM server to
access the LUN that contains the DB and logs. Ensure that the DR TSM
server's dsmserv.dsk points to the mapped drives.

Note the the TSM tape library is also SAN attached.

Any comments / experiences would be appreciated.


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