On Mon, 22 Aug 2011 12:39:42 +0200 Piotr Legiecki <piotrlg@xxxxxxxxxx> wrote: > Hi > > I'v got RAID10 on 4 disks. Suddenly two of the disks failed (I doubt the > disks actually failed, rather it is a kernel failure or maybe > motherboard SATA controller)? > > So after rebootig I cannot start the array. So my first question is: on > RAID10 (default layout) which disks may fail and still the array survive? Not adjacent disks. > > mdadm --examine /dev/sda1 > /dev/sda1: > Magic : a92b4efc > Version : 00.90.00 > UUID : fab2336d:71210520:990002ab:4fde9f0c (local to host bez) > Creation Time : Mon Aug 22 10:40:36 2011 > Raid Level : raid10 > Used Dev Size : 976759936 (931.51 GiB 1000.20 GB) > Array Size : 1953519872 (1863.02 GiB 2000.40 GB) > Raid Devices : 4 > Total Devices : 4 > Preferred Minor : 4 > > Update Time : Mon Aug 22 10:40:36 2011 > State : clean > Active Devices : 2 > Working Devices : 2 > Failed Devices : 2 > Spare Devices : 0 > Checksum : d4ba8390 - correct > Events : 1 > > Layout : near=2, far=1 > Chunk Size : 64K > > Number Major Minor RaidDevice State > this 0 8 1 0 active sync /dev/sda1 > > 0 0 8 1 0 active sync /dev/sda1 > 1 1 8 17 1 active sync /dev/sdb1 > 2 2 0 0 2 faulty > 3 3 0 0 3 faulty > > The last two disks (failed ones) are sde1 and sdf1. > > So do I have any chances to get the array running or it is dead? Possible. Report "mdadm --examine" of all devices that you believe should be part of the array. NeilBrown > > I've tried a few steps to run the array but with no luck. > > Regards > P. > > -- > 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 -- 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
