If you perform an incremental db backup, then you are backing up
the log.

IF you do a full back, then you no longer need the LOG and
TSM resets it to zero when the backup is complete.



-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Bill Zhang
Sent: Sunday, 16 February 2003 12:32 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: questions on DB and recovery log backup


Hi list,

My environment:
TSM server 5.1.0 on AIX433ML10.
TSM client 4.2.1 on the same box.

I have two questions.

Q1. Can I backup a TSM database onto a volume that has
already contained another db backup? another word,
Can I run the following command twice without failure?
  TSM> backup db type=full devclass=tapeclass
volumenames=dbbk1
when I ran the command the second time, the TSM said
the dbbk1 is already in use - skipped

Q2. How to backup recovery log?
Is backing up the OS file systems on where the
recovery log was created the only way or one the ways
to do that?

Thanks a lot.

Bill

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