i performed mdadm -E on the devices in the array
myth ~ # mdadm -E /dev/hdi1
/dev/hdi1:
Magic : a92b4efc
Version : 00.90.02
UUID : 9ab2395c:b39cfe1c:ba195ea0:0505eb9d
Creation Time : Mon Dec 26 13:41:06 2005
Raid Level : raid5
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Mon Jul 10 21:43:11 2006
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 4aaf93b4 - correct
Events : 0.428721
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 56 1 0 active sync /dev/hdi1
0 0 56 1 0 active sync /dev/hdi1
1 1 56 65 1 active sync /dev/hdj1
2 2 57 1 2 active sync /dev/hdk1
3 3 57 65 3 active sync /dev/hdl1
myth ~ # mdadm -E /dev/hdj1
/dev/hdj1:
Magic : a92b4efc
Version : 00.90.02
UUID : 9ab2395c:b39cfe1c:ba195ea0:0505eb9d
Creation Time : Mon Dec 26 13:41:06 2005
Raid Level : raid5
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Mon Jul 10 21:43:11 2006
State : clean
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 4aaf93f6 - correct
Events : 0.428721
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 1 56 65 1 active sync /dev/hdj1
0 0 56 1 0 active sync /dev/hdi1
1 1 56 65 1 active sync /dev/hdj1
2 2 57 1 2 active sync /dev/hdk1
3 3 57 65 3 active sync /dev/hdl1
myth ~ # mdadm -E /dev/hdk1
/dev/hdk1:
Magic : a92b4efc
Version : 00.90.02
UUID : 9ab2395c:b39cfe1c:ba195ea0:0505eb9d
Creation Time : Mon Dec 26 13:41:06 2005
Raid Level : raid5
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Mon Jul 10 21:43:11 2006
State : active
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 4aa90908 - correct
Events : 0.428722
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 2 57 1 2 active sync /dev/hdk1
0 0 56 1 0 active sync /dev/hdi1
1 1 56 65 1 active sync /dev/hdj1
2 2 57 1 2 active sync /dev/hdk1
3 3 57 65 3 active sync /dev/hdl1
myth ~ # mdadm -E /dev/hdl1
/dev/hdl1:
Magic : a92b4efc
Version : 00.90.02
UUID : 9ab2395c:b39cfe1c:ba195ea0:0505eb9d
Creation Time : Mon Dec 26 13:41:06 2005
Raid Level : raid5
Raid Devices : 4
Total Devices : 4
Preferred Minor : 0
Update Time : Mon Jul 10 21:43:11 2006
State : active
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Checksum : 4aa9094a - expected 4aa908c4
Events : 0.428722
Layout : left-symmetric
Chunk Size : 64K
Number Major Minor RaidDevice State
this 0 0 0 0 spare
0 0 56 1 0 active sync /dev/hdi1
1 1 56 65 1 active sync /dev/hdj1
2 2 57 1 2 active sync /dev/hdk1
3 3 57 65 3 active sync /dev/hdl1
it does report as hdk having a bad checksum .. but the other 3 drives
seem okay .. hopefully i can restore my data ... but why isn't it
loading up in a 3 drive config ??
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