Hi all
One disk in my raid 1 0 failed the other night.
It has been running for +8 years, on my server, a Debian Squeeze.
(And yes, I was just about to update them, bought the HD's and everything)
I thought that i would be able to backup the data, but i got ext4
error aswell, and when i tried to repair that with fsck i got:
"
# fsck -n /dev/md0
fsck.ext4: Attempt to read block from filesystem resulted in short
read while trying to open /dev/md0
Could this be a zero-length partition?
"
So i am wondering if my mdadm raid is okay.
The "State [clean|active]" and "Array State : AA.." is not so easy
to interpret, tried to read parts of the threads, but at the same time
is worried that more disks should failt... And I'm starting to get
really stressed :(
All the disk are the same type. And apparently does not support SCT,
which I was not aware of before.
/dev/sde2 seems to be gone.
"
cat /proc/mdstat
Personalities : [raid10]
md0 : active raid10 sda2[0] sde2[3](F) sdc2[2](F) sdb2[1]
5840999424 blocks super 1.2 512K chunks 2 near-copies [4/2] [UU__]
"
"
smartctl -H -i -l scterc /dev/sda
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net
=== START OF INFORMATION SECTION ===
Device Model: WDC WD30EZRX-00MMMB0
Serial Number: WD-WMAWZ0328886
Firmware Version: 80.00A80
User Capacity: 3 000 592 982 016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Mon Jan 13 23:53:27 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
Warning: device does not support SCT Error Recovery Control command
"
"
/dev/md0:
Version : 1.2
Creation Time : Tue Oct 9 23:30:23 2012
Raid Level : raid10
Array Size : 5840999424 (5570.41 GiB 5981.18 GB)
Used Dev Size : 2920499712 (2785.21 GiB 2990.59 GB)
Raid Devices : 4
Total Devices : 4
Persistence : Superblock is persistent
Update Time : Mon Jan 13 22:47:33 2020
State : clean, FAILED
Active Devices : 2
Working Devices : 2
Failed Devices : 2
Spare Devices : 0
Layout : near=2
Chunk Size : 512K
Name : ttserv:0 (local to host ttserv)
UUID : cb5bfe7a:3806324c:3c1e7030:e6267102
Events : 2860
Number Major Minor RaidDevice State
0 8 2 0 active sync /dev/sda2
1 8 18 1 active sync /dev/sdb2
2 0 0 2 removed
3 0 0 3 removed
2 8 34 - faulty spare /dev/sdc2
3 8 66 - faulty spare
"
"
/dev/sda2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : cb5bfe7a:3806324c:3c1e7030:e6267102
Name : ttserv:0 (local to host ttserv)
Creation Time : Tue Oct 9 23:30:23 2012
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 5840999786 (2785.21 GiB 2990.59 GB)
Array Size : 11681998848 (5570.41 GiB 5981.18 GB)
Used Dev Size : 5840999424 (2785.21 GiB 2990.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : f474ad64:6bb236d3:9f69f55c:eb9b8c27
Update Time : Mon Jan 13 22:47:33 2020
Checksum : 5c2fce09 - correct
Events : 2860
Layout : near=2
Chunk Size : 512K
Device Role : Active device 0
Array State : AA.. ('A' == active, '.' == missing)
/dev/sdb2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : cb5bfe7a:3806324c:3c1e7030:e6267102
Name : ttserv:0 (local to host ttserv)
Creation Time : Tue Oct 9 23:30:23 2012
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 5840999786 (2785.21 GiB 2990.59 GB)
Array Size : 11681998848 (5570.41 GiB 5981.18 GB)
Used Dev Size : 5840999424 (2785.21 GiB 2990.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : clean
Device UUID : 1a67153d:8d15019a:349926d5:e22dd321
Update Time : Mon Jan 13 22:47:33 2020
Checksum : 6dd9e4de - correct
Events : 2860
Layout : near=2
Chunk Size : 512K
Device Role : Active device 1
Array State : AA.. ('A' == active, '.' == missing)
/dev/sdc2:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : cb5bfe7a:3806324c:3c1e7030:e6267102
Name : ttserv:0 (local to host ttserv)
Creation Time : Tue Oct 9 23:30:23 2012
Raid Level : raid10
Raid Devices : 4
Avail Dev Size : 5840999786 (2785.21 GiB 2990.59 GB)
Array Size : 11681998848 (5570.41 GiB 5981.18 GB)
Used Dev Size : 5840999424 (2785.21 GiB 2990.59 GB)
Data Offset : 2048 sectors
Super Offset : 8 sectors
State : active
Device UUID : 23079ae3:c67969c2:13299e27:8ca3cf7f
Update Time : Sun Jan 12 00:11:05 2020
Checksum : ed375eb5 - correct
Events : 2719
Layout : near=2
Chunk Size : 512K
Device Role : Active device 2
Array State : AAA. ('A' == active, '.' == missing)
"
I really hope someone can help me!
/Rickard
