I've been implementing Journal Based Backups for the first time using the
5.3 Windows client and thought I'd share some of my experiences and issues.

According to the Problem Determination Guide, there is a tool called
DBViewB.EXE for testing the validity of a filesystem journal database file.
The corresponding tool for v5.1 and v5.2 was called DBView.EXE and was
available as part of an unsupported download called JBBTools.zip. A link to
this is included in the TSM Journal Based Backup FAQ (IBM document
reference 1155524).

However the database structure has changed in 5.3 and the old tools no
longer work. Does anybody know where I can find a copy of DBViewB.EXE as
this information seems to have been omitted from the Problem Determination
Guide?

While I'm on the subject of the change to the database structure in 5.3,
the new journal files have a '.jbbdb' extension, but these files are not
part of the default list of files to be excluded from the journaling in
TSMJBBD.INI. However the old journal database files are excluded. Surely
this is an omission?

Finally, the NLSREPOS entry in the TSMJBBD.INI file defaults to
DSCAMENG.TXT. This causes a warning if you try to run the Journal Service
as a foreground process (TSMJBBD.EXE i) as this file does not exist in the
BAClient directory. I was under the impression that DSCAMENG.TXT had been
superseded since v5.2 by DSMENU.TXT and that the existence of DSMAMENG.TXT
in the API directory was only for backward compatibility.

I'll try logging a call with IBM Support but wondered if anybody had
similar experiences.

Don't get me wrong, I think JBB is excellent. I've managed to reduce the
daily backup of a file system containing 5.6 million files from 9 hours to
8 seconds!

Regards
Neil Schofield
Yorkshire Water Services Ltd.




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