On Thu, Mar 01, 2012 at 07:14:38PM +0100, John Obaterspok wrote: > Hello, > > Occasionally my system don't shutdown cleanly and almost all time > mdadm kicks one of the disks on the RAID5 array. > Is there anything I can do to help prevent this? > > I'm using sw raid 5 with 3 x 3TB Hitachi Deskstar (7K3000 HDS723030ALA640 64MB). > > -------- [snip...] I'm guessing you're trying to avoid re-syncing a 6TB array in the event that your host goes down in an un-clean state. In that case, I would suggest using a write-intent bitmap on the array. If you're concerned about loss of performance when using a bitmap, use an external bitmap that is located on another spindle(s). Bryan -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
