Roman Mamedov wrote:
On Thu, 10 Jun 2010 14:02:42 -0400
Miles Fidelman<mfidelman@xxxxxxxxxxxxxxxx> 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.
Just went through the process of turning it on for all my arrays.
Incredibly painless and quick. Now I get to wait and see if it helps
the next time I have a crash/reboot event.
Thanks very much!
Miles
--
In theory, there is no difference between theory and practice.
In<fnord> practice, there is. .... Yogi Berra
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