Hello all,
I just set up a new raid 5 array of 4 750G disks and am having a strange
experience where /proc/mdstat is showing that one device is missing from the
array. The output from a "--detail" shows that there is some unnamed device
that has been removed from the array and I don't understand why or how to fix
it. Can someone please shed some light?
kernel version: 2.6.20-1.2312.fc5xen0 (this is a fedora core 5 prebuilt kernel)
mdadm version: mdadm - v2.3.1 - 6 February 2006
[root@storage ~]# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4]
md2 : active raid5 sdg[4] sdf[2] sde[1] sdd[0]
2197723392 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_]
[root@storage ~]# mdadm --query --detail /dev/md2
/dev/md2:
Version : 00.90.03
Creation Time : Sat May 12 17:22:30 2007
Raid Level : raid5
Array Size : 2197723392 (2095.91 GiB 2250.47 GB)
Device Size : 732574464 (698.64 GiB 750.16 GB)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 2
Persistence : Superblock is persistent
Update Time : Sun May 13 04:07:57 2007
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 64K
UUID : 6a0d59e6:e00ec820:d08e477f:3b7ef9bc
Events : 0.68
Number Major Minor RaidDevice State
0 8 48 0 active sync /dev/sdd
1 8 64 1 active sync /dev/sde
2 8 80 2 active sync /dev/sdf
0 0 0 0 removed
4 8 96 4 active sync /dev/sdg
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