Rainer

We have done journal-based backups on MSCS. There is no need for multiple
journal services - one per cluster node is sufficient. The idea is to have
each one configured to journal any file system on which you desire JBB, but
suppress the errors if the resource is not actually on line on that node.

The sample tsmjbbd.ini describes how the parameters DeferFSMonStart,
DeferRetryInterval and LogFsErrors can be configured to support this.

This extract from our tsmjbbd.ini shows support for journaling on two
shared files systems - G: and H:.

[JournaledFileSystemSettings]
JournaledFileSystems=G: H:
...

[JournaledFileSystemSettings.G:\]
DeferFsMonStart=1
DeferRetryInterval=30
logFsErrors=0

[JournaledFileSystemSettings.H:\]
DeferFsMonStart=1
DeferRetryInterval=30
logFsErrors=0

My only concern about this is what happens if a failover occurs and a file
is modified within the DeferRetryInterval. I guess if it is not
subsequently modified, it never gets backed up?

Regards
Neil Schofield
Yorkshire Water Services Ltd.



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