We had a drive die in a RAID1 array. I've tried to bring it back so we
can migrate the data to a new machine and it keeps telling me "/dev/md0
assembled from 1 drive - not enough to start the array." I've tried
everything I've found in the FAQ and wiki to no avail. What am I missing?
Here's the log of what I've tried:
# mdadm -E /dev/hdb1
/dev/hdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : f8055b6f:766f7a3f:ad80d985:eb77d033
Creation Time : Thu Feb 19 10:57:42 2004
Raid Level : raid0
Device Size : 102398208 (97.65 GiB 104.86 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Sat Feb 3 22:56:54 2007
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 3cadf274 - correct
Events : 0.44
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 3 65 1 active sync /dev/hdb1
0 0 3 2 0 active sync /dev/hda2
1 1 3 65 1 active sync /dev/hdb1
Personalities : [raid0] [raid1] [raid5] [raid6]
# mdadm -Af /dev/md0 /dev/hdb1
mdadm: /dev/md0 assembled from 1 drive - not enough to start the array.
# cat /proc/mdstat
md0 : inactive hdb1[1]
102398208 blocks
unused devices: <none>
--
</chris>
If trees could scream, would we be so cavalier about cutting them down?
We might, if they screamed all the time, for no good reason.
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