On Fri, 28 Sep 2007, Matt wrote:
> Brian A. Seklecki schreef:
>
> As for the suggestion of hardware raid - unfortunately this is a live
> server. If I migrate it to another machine I will definitely try
> hardware raid
> I know it is a lot faster but would that solve the parity problem on
> boot completely? 'man bio' doesn't seem to answer that.
>
Actually, we ended up moving all of our RAID1 machines to s/w mirroring
with rsync. No rebuild time, and you can even swap cables to get the
machine up immediately in the case of a catastropic failure.
Depending on the application, an rsync job every 10-15 minutes will do
what you need just fine. The only problem would be with huge databases
- an entire table would rsync at once.
We have tried rsnapshot also with good success (it maintains versions
automatically), but not with database applications.
Lee
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Leland V. Lammert [EMAIL PROTECTED]
Chief Scientist Omnitec Corporation
Network/Internet Consultants www.omnitec.net
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