Load spikes when new email arrives
Vincent Fox
vbfox at ucdavis.edu
Wed Jan 23 14:21:13 EST 2013
On 01/23/2013 08:16 AM, francis picabia wrote:
>
> I've also backed out the change (yesterday) to
> /sys/block/sda/queue/nr_requests
> I think it was pushing the load higher and there is no advantage
> in my hardware (SAS with Perc 5/i Raid 5 over 4 disk)
> to run with a low value for nr_requests.
RAID 5?
We use RAID 10 for our Cyrus stores.
I'm in the anti-RAID 5 camp:
http://www.baarf.com/
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