On Fri, 28 Sep 2007, Matt wrote:
> Brian A. Seklecki schreef:

quoted text
>

> 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            lvl@omnitec.net

    Chief Scientist     Omnitec Corporation

 Network/Internet Consultants   www.omnitec.net

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