Catalog backup fails intermittently with status 2 due to validation failure

Problem

Hot catalog backup fails with status 2 intermittently.  The backup is automatically rerun and completes successfully.

Error Message

08/01/2012 00:00:11 - Info bpdbm (pid=12786) staging relational database files for catalog backup
08/01/2012 00:00:11 - Info bpdbm (pid=12786) staging BMRDB backup to /usr/openv/db/staging
08/01/2012 00:00:13 - Info bpdbm (pid=12786) done staging BMRDB backup to /usr/openv/db/staging
08/01/2012 00:00:13 - Info bpdbm (pid=12786) done staging NBAZDB backup to /usr/openv/db/staging
08/01/2012 00:00:13 - Info bpdbm (pid=12786) staging NBDB backup to /usr/openv/db/staging
08/01/2012 00:00:28 - Info bpdbm (pid=12786) done staging NBDB backup to /usr/openv/db/staging
08/01/2012 00:06:09 - Info bpdbm (pid=12786) validating BMRDB backup in /usr/openv/db/staging
08/01/2012 00:06:13 - Info bpdbm (pid=12786) done validating BMRDB backup in /usr/openv/db/staging
08/01/2012 00:06:13 - Info bpdbm (pid=12786) validating NBAZDB backup in /usr/openv/db/staging
08/01/2012 00:06:14 - Info bpdbm (pid=12786) done validating NBAZDB backup in /usr/openv/db/staging
08/01/2012 00:06:14 - Info bpdbm (pid=12786) validating NBDB backup in /usr/openv/db/staging
08/01/2012 00:06:14 - Error bpdbm (pid=12786) error validating NBDB backup in /usr/openv/db/staging
none of the requested files were backed up  (2)

Cause

ET 2735985 - Catalog backup job hitting error validating NBDB occasionally, subsequent attempt succeeds

Solution

The workaround is to either allow the occasional failures or disable db validation by changing/adding the setting below in the /usr/openv/db/data/vxdbms.conf file

VXDBMS_VALIDATION = OFF