Hello,
I have been trying to get a raid5 array going on SuSE 10.1 Final
(2.6.16.21-0.13-default) but every time I create, resync, or rebuild a
spare it seems to have worked, but
# mdadm --examine /dev/sd[bcd]1
gives a report that the checksum is off:
/dev/sdb1:
Magic : a92b4efc
Version : 00.90.00
UUID : 54c68515:52bd0a49:4e00c3d1:138a01a4
Creation Time : Tue Aug 15 13:14:09 2006
Raid Level : raid5
Device Size : 244195840 (232.88 GiB 250.06 GB)
Array Size : 488391680 (465.77 GiB 500.11 GB)
Raid Devices : 3
Total Devices : 3
Preferred Minor : 1
Update Time : Wed Aug 16 18:12:59 2006
State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
Spare Devices : 0
Checksum : 4a95604a - expected 4a955f4e
Events : 0.6
Layout : left-symmetric
Chunk Size : 512K
Number Major Minor RaidDevice State
this 0 8 17 0 active sync /dev/sdb1
0 0 8 17 0 active sync /dev/sdb1
1 1 8 33 1 active sync /dev/sdc1
2 2 8 49 2 active sync /dev/sdd1
Furthermore, I can work with the array at this point and it seems to
be ok unless I were to reboot or stop and re-assemble it:
# mdadm --assemble /dev/md1
mdadm: failed to add /dev/sdc1 to /dev/md1: Invalid argument
mdadm: failed to add /dev/sdd1 to /dev/md1: Invalid argument
mdadm: failed to add /dev/sdb1 to /dev/md1: Invalid argument
mdadm: /dev/md1 assembled from 0 drives - not enough to start the array.
I've tried to assemble with --update=resync, super-minor, or
summaries. The latter two seem to work, but the data on the array has
become corrupt as a result. I would greatly appreciate any help
anybody could give.
Thanks,
Richard
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