ADSM-L

[ADSM-L] Novell/NSS Cluster backup problem

2009-05-26 02:39:07
Subject: [ADSM-L] Novell/NSS Cluster backup problem
From: Michael Green <mishagreen AT GMAIL DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 26 May 2009 09:38:37 +0300
Environment:

TSM 5.5.2
2 x Novell OES 10.2 ( based on SLES 10) servers: WIS-HB32 and WIS-HB31
Novell Cluster Services 1.8.4
One NSS-formatted volume /media/nss/D31 is SAN-attached to both
servers, but  mounted on WIS-HB31 only.
When WIS-HB31 goes down Novell cluster is capable of migrating and
mounting this volume on WIS-HB32.

I've installed and configured the BA client v5.5.2 as described in
Appendix B of "BA Client Installation and User's Linux Guide 5.5"
which talks about configuring BA client in a cluster environment. Both
clients are configured with the same NODENAME WIS-HB and share dsm.opt
file that reside on the shared NSS volume in
/media/nss/D31/tsm/dsm.opt along with the password file.

The problem:

Initial backup of the NSS volume executed as NODENAME WIS-HB on
WIS-HB31 works fine and backup of all new data is performed.
Subsequent incremental backup run on WIS-HB31 also works as expected
(backing up only tiny amount of changes). However, after the same NSS
volume is migrated to WIS-HB32, the incremental backup executed as
NODENAME WIS-HB from WIS-HB32 sends all of the data to the server like
if it was new data that was never backed up before.

Anyone has any experience with such setup and/or have any idea why
incremental of the same filespace from the second node, under same
NODENAME behaves like selected backup?
--
Warm regards,
Michael Green

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