[BlueOnyx:11228] MD RAID device state="clean, degraded" -- how to fix
Bob Wickline
wick at bobwickline.com
Tue Aug 28 22:26:25 -05 2012
I have a Dell server that I installed 5108. It has two (2) 1GB drives
and one (1) 2GB disk. When I installed it, I used the option to mirror
(soft RAID) across the drives but when I did it used all three drives.
I used "mdadm" to fail and remove the third (2GB) drive. (I did not
want it part of the root mirror) Now the device shows "clean, degraded"
when I list it with mdadm:
# mdadm --detail /dev/md0
/dev/md0:
Version : 1.0
Creation Time : Fri Jul 20 07:38:36 2012
Raid Level : raid1
Array Size : 511988 (500.07 MiB 524.28 MB)
Used Dev Size : 511988 (500.07 MiB 524.28 MB)
Raid Devices : 3
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Tue Aug 28 16:25:57 2012
State : clean, degraded
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Name : localhost.localdomain:0
UUID : 8b68d22d:4566147a:621a50a4:6d016578
Events : 325
Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
3 8 17 1 active sync /dev/sdb1
2 0 0 2 removed
#
How do I recover from this?
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