On 04/07/15 09:10, Mikael Abrahamsson wrote: > >> Make sure you've got your raid timeout increased - there's plenty of >> threads about how to do it - otherwise one disk hiccup for any reason >> is likely to cause a cascade of failures !!!! > > I recommend this as minimum (in rc.local for instance): > > for x in /sys/block/sd[a-z] ; do > echo 180 > $x/device/timeout > done > > echo 4096 > /sys/block/md0/md/stripe_cache_size If you didn't do this, this could EASILY explain your problems. 7 disks is 21TB of data. That pretty much *guarantees* TWO soft errors. Each error will kick a disk from the array. Plus the drive you're replacing that makes your raid 6 short by 3 drives. OOOOPPPSS. Cheers, Wol -- 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
