On Thu, 10 Jun 2010 14:02:42 -0400
Miles Fidelman <mfidelman@meetinghouse.net> wrote:
 
> 2.  Are there any settings that can reduce the likelihood of a RAID 
> volume being dirty after a crash?  (The crash/reboot isn't that much of 
> a problem - the several hours of degraded performance ARE a problem.)

Do you currently have a write intent bitmap in the array? I think it can
reduce the need for recovery by an order of magnitude in some cases. Check man
mdadm for --bitmap if you don't use it yet.

-- 
With respect,
Roman