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?
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?
I've tried a few steps to run the array but with no luck.
Regards
P.
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