Dear Linux raiders- I ran into a problem with raid1 recovery after
a disk failure (running Fedora2, kernel 2.6.8-1.521smp).
1) I had a raid1 filesystem mirrored across /dev/hda2 and /dev/hdc2.
2) Disk hda died (unreadable sectors, fails SMART tests)
3) A new blank hda was installed and partitionned exactly like hdc.
4) I cannot restart and rebuild the raid1 volume because hdc2 is
in a funny "spare" state (see below)
How do I mark hdc2 as "active"?
Once "active", I assume then I will be able to restart md0,
hot-add /dev/hda2 as usual. (And the mirror will resync and rebuild itself?
Hopefully?)
[root@tw04 root]# mdadm -E /dev/hdc2
/dev/hdc2:
Magic : a92b4efc
Version : 00.90.00
UUID : aade8782:20122089:4f496788:228d85b9
Creation Time : Fri Oct 8 17:12:56 2004
Raid Level : raid1
Device Size : 124158208 (118.41 GiB 127.14 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 0
Update Time : Mon Oct 18 06:04:35 2004
State : clean, no-errors
Active Devices : 1
Working Devices : 2
Failed Devices : 1
Spare Devices : 1
Checksum : 7041db42 - correct
Events : 0.312429
Number Major Minor RaidDevice State
this 2 22 2 2 spare /dev/hdc2
0 0 3 2 0 active sync /dev/hda2
1 1 0 0 1 faulty removed
2 2 22 2 2 spare /dev/hdc2
[root@tw04 root]#
--
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
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