Hello all.
I have a strange issue when trying to rebuild my raid1 array.
One disk is operational and my laptop is running fine with the degraded raid1,
but when I add a second disk, this disk wont get synced.
md0 is mounted ad /boot and running with /dev/sdb (my new SSD), /dev/sda is my
HDD I want to add.
Below is some system info you might need.
Please help, this is making my raid unusable (eg there is no raid when you use
just one single disk ;) )
Thilo Molitor
# cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sdb2[2] sda2[0]
204736 blocks [2/1] [U_]
[>....................] recovery = 0.0% (128/204736) finish=6394.0min
speed=0K/sec
# mdadm -E /dev/sda2
/dev/sda2:
Magic : a92b4efc
Version : 0.90.00
UUID : 8024b3b6:76520e88:9d4deba6:47ca997f
Creation Time : Wed Nov 6 01:55:24 2013
Raid Level : raid1
Used Dev Size : 204736 (199.97 MiB 209.65 MB)
Array Size : 204736 (199.97 MiB 209.65 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Fri May 23 21:08:34 2014
State : clean
Active Devices : 1
Working Devices : 2
Failed Devices : 1
Spare Devices : 1
Checksum : 2ab6fe80 - correct
Events : 3009
Number Major Minor RaidDevice State
this 0 8 2 0 active sync /dev/sda2
0 0 8 2 0 active sync /dev/sda2
1 1 0 0 1 faulty removed
2 2 8 18 2 spare /dev/sdb2
/dev/sdb2:
Magic : a92b4efc
Version : 0.90.00
UUID : 8024b3b6:76520e88:9d4deba6:47ca997f
Creation Time : Wed Nov 6 01:55:24 2013
Raid Level : raid1
Used Dev Size : 204736 (199.97 MiB 209.65 MB)
Array Size : 204736 (199.97 MiB 209.65 MB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Fri May 23 21:08:34 2014
State : clean
Active Devices : 1
Working Devices : 2
Failed Devices : 1
Spare Devices : 1
Checksum : 2ab6fe8e - correct
Events : 3009
Number Major Minor RaidDevice State
this 2 8 18 2 spare /dev/sdb2
0 0 8 2 0 active sync /dev/sda2
1 1 0 0 1 faulty removed
2 2 8 18 2 spare /dev/sdb2
# ps -A -f | grep md0_resync
root 311 2 0 Mai19 ? 00:00:07 [md0_resync]
# cat /proc/311/stack
[<ffffffff81066a90>] process_timeout+0x0/0x10
[<ffffffff81068057>] msleep+0x27/0x30
[<ffffffffa01ec791>] md_do_sync+0x9b1/0xcd0 [md_mod]
[<ffffffff81093362>] load_balance+0x1c2/0x840
[<ffffffffa01e9637>] md_thread+0xf7/0x110 [md_mod]
[<ffffffffa01e9540>] md_thread+0x0/0x110 [md_mod]
[<ffffffff8107b8c1>] kthread+0xc1/0xe0
[<ffffffff8107b800>] kthread+0x0/0xe0
[<ffffffff814a944c>] ret_from_fork+0x7c/0xb0
[<ffffffff8107b800>] kthread+0x0/0xe0
[<ffffffffffffffff>] 0xffffffffffffffff
# uname -a
Linux laptop 3.13-1-amd64 #1 SMP Debian 3.13.10-1 (2014-04-15) x86_64
GNU/Linux
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