All,
I'm having problems quickly backing up logical logs for an informix 7.31
database using Netbackup 6.0 MP2.

Each Informix Server (there are many of them....) has a 550 meg staging
disk that the logical logs back up to.  Every hour that staging disk is
duplicated onto a tape library local at each server.  We have just
migrated to Netbackup 6.0 MP2 from Legato Networker 6.1.  On Legato, the
Logical Logs went directly to tape, and took a mater of seconds.  Now,
with the logical logs going to the local hard disk, it takes around 31
seconds (the record) to 1 minute 20 seconds (the slow record).  My
problem is, is that these servers load will vary depending to the time
of day.  That said, a single logical log can be used up in a mere 15
seconds.  Once all the logical logs are full, and not backed up...the
database screams to a grinding halt.

Does anyone have any experience with performance tuning backups to a
staging disk?  Specifically Informix Logical Logs?

Thanks.

--
Mike Sponsler
Northrop Grumman
Michael.Sponsler at ngc.com
(703) 968-1302
12900 Federal Systems Pkwy
Fairfax, VA 22033


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