Re: [ADSM-L] TSM 6.2.2. restore from Data Domain 880

Jim, my apologies for getting away from your question/subject here, but had a 
question for Ben....

I have given serious thought to handling my DR site in a similar fashion (warm 
stand-by)but have reluctantly decided not to because of the automated tasks 
such as Admin schedules and command routing that I would not want to run on the 
DR data and DR TSM servers as it would result in the DR data being out of sync 
with production. If you can comment on how you addressed the issues it would be 
much appreciated.

Thanks


~Rick


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Ben Bullock
Sent: Thursday, August 25, 2011 4:32 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] TSM 6.2.2. restore from Data Domain 880

We are doing the same thing here, although with older versions of TSM: TSM v 
5.5.5.0 on AIX6.1.

We dump the TSM DB to a DD690, replicate to a DD580 at a DR site. Then we kick 
off a script to restore the DB to a standby TSM server at the DR site.
In testing we did fulls, and fulls+incr and commits and we have not had any 
errors. We've only been doing it for about a month now, but the process runs 
every morning to load the full DB backup (to keep the DR site warmer and 
readier to go) and I haven't had a failure yet. The DB is 150GB, in one 150GB 
file we load from.

My script wipes out the DB every time before loading the DB dump. I don't think 
it's necessary, but I do it just for a clean slate. The command looks something 
like this:
dsmserv format 1 /dev/rlogvol 4 /dev/rdbvol1 /dev/rdbvol2 /dev/rdbvol3 
/dev/rdbvol4

Not sure what the issue could be to cause it to fail intermittently. Hopefully 
it's not related to the TSM server version, because we will eventually have to 
go to 6.X.

Sorry I'm no help in this case.

Ben

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Schneider, Jim
Sent: Thursday, August 25, 2011 1:19 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] TSM 6.2.2. restore from Data Domain 880

Is anybody else performing Disaster Recovery testing of AIX 6.1 TSM 6.2.2.0 by 
restoring the database directly from a Data Domain 880 file device?

My problem is that I can restore the database some of the time, and get 
"ANR4522E RESTORE DB failed with LOG file error." the rest of the time.  I have 
opened PMR 36668,122 but the tech seems to think the problem is that I'm using 
a script to generate the db restore command, despite the fact that I've 
explained that the problem is intermittent.

I've copied the database files to local storage prior to a restore attempt.  If 
I can restore from the local copy I can restore directly from the DD880.  If 
the local copy restore files with a log file error, the DD880 restore has the 
same problem.  It looks like corrupted Db backup files are being written 
(sometimes).  I'm searching through logs and would appreciate any suggestions.

Jim Schneider
United Stationers

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