Jerome R. Westrick wrote:
On Thursday 15 March 2007 20:12, David Mayr wrote:
Am Donnerstag, 15. März 2007 19:47 schrieb John Andersen:
> On Thursday 15 March 2007, James D. Parra wrote:
> > Isn't mirroring a swap partition a bad idea, or at the least wasteful?
>
> Mirroring is not too bad for swap. When the system needs to read
> swap the raid drivers will read from which ever disk is not busy, so
> it might be faster than non-raid, but only slightly so.
Mirroring swap isn't a bad idea also because your running system would
break if a disk crashes with swapped data on it.
I put seperate swaps one on each disk,
and raid the rest.
This means that the machine crashes when a disk breaks.
The system then works after a reboot.
In this form I Immedeatetly know when a disk breaks at one
of my SOHO clients. I find that to be a major plus.
SUSE normally starts mdadm and notifies you about disk breakage. For
extended supervision Nagios is even better.
That's the whole reason for a RAID system, to be able to repair disk
failures in a scheduled and organized way without crashing a running
system. Not mirroring the swap partition counters that advantage and
is bad advice, IMNSHO.
Joachim
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Joachim Schrod Email: [EMAIL PROTECTED]
Roedermark, Germany
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