As Wanda likes to say.."It depends.."

It depends on your requirements, the amount of space you have available
on the Domino server for logs, how often you want to CYA yourself,... If
you have some heavily updated databases, the amount of space for logs
may require you to archive them more often. If you want to make sure
that you can restore to the previous hour in the case of a total server
crash, you lose the RAID array,... then archive more often is necessary.

You can reduce the restore time by directing the archive log backups to
either a collocated storage pool, or just their own storage pool to
reduce the number of tapes required for restore processing.

You just need to take this all into account when architecting the
process...."It depends".

Bill Boyer
DSS, Inc.

On Mon, 2002-11-25 at 09:35, Mark Stapleton wrote:
> On Mon, 2002-11-25 at 06:12, Del Hoobler wrote:
> > I am not sure I understand how your solution
> > of backing up the log less often will help.
> > The same amount of data will need to be backed up
> > whether you queue them up or not.
>
> Think about it, Del. It's not the amount of data that I was trying to
> work around; it's the number of restores I was trying to reduce.
>
> If you're backing up Domino logs thrice a day, instead of 24 times a
> day, you have 1/8th the number of tape mounts, spin-forwards, restores,
> log replays, rewinds, and dismounts. Since log restores are a
> single-threaded process, and if each log restore requires 4 minutes
> (which is pretty conservative), and you're restoring 5 days' worth of
> logs, my scheme would require an hour for log restoration, versus 8
> hours if you're backing them up every hour.
>
> --
> --
> Mark Stapleton (stapleton AT berbee DOT com)
> Certified TSM consultant
> Certified AIX system engineer
> MCSE