Neil,
Thanks for the reply:
>What is the output of each of
> mdadm -E /dev/sdb
root@server2:~# mdadm -E /dev/sdb
/dev/sdb:
Magic : a92b4efc
Version : 00.90.00
UUID : 15e5ad84:82b4dd79:6719eb14:a41dd719
Creation Time : Mon Mar 28 23:52:08 2011
Raid Level : raid1
Used Dev Size : 1953027008 (1862.55 GiB 1999.90 GB)
Array Size : 1953027008 (1862.55 GiB 1999.90 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Update Time : Sun Feb 19 15:44:55 2012
State : active
Active Devices : 1
Working Devices : 2
Failed Devices : 0
Spare Devices : 1
Checksum : 5e4b8288 - correct
Events : 1314601
Number Major Minor RaidDevice State
this 2 8 16 2 spare /dev/sdb
0 0 0 0 0 removed
1 1 8 3 1 active sync /dev/sda3
2 2 8 16 2 spare /dev/sdb
> mdadm -E /dev/sdb3
root@server2:~# mdadm -E /dev/sdb3
/dev/sdb3:
Magic : a92b4efc
Version : 00.90.00
UUID : 15e5ad84:82b4dd79:6719eb14:a41dd719
Creation Time : Mon Mar 28 23:52:08 2011
Raid Level : raid1
Used Dev Size : 1953027008 (1862.55 GiB 1999.90 GB)
Array Size : 1953027008 (1862.55 GiB 1999.90 GB)
Raid Devices : 2
Total Devices : 2
Preferred Minor : 1
Update Time : Mon Feb 20 18:38:09 2012
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Checksum : 5e621af4 - correct
Events : 1349308
Number Major Minor RaidDevice State
this 0 8 19 0 active sync /dev/sdb3
0 0 8 19 0 active sync /dev/sdb3
1 1 8 3 1 active sync /dev/sda3
>What version of mdadm do you have?
root@server2:~# mdadm -V
mdadm - v2.6.7.1 - 15th October 2008
>What is the starting sector of /dev/sdb3? In particular, is it a multiple of
64K?
589824
Doesn't appear to be. Each sector (according to gdisk is 512 bytes), but this is same as sda.
Odd that the system thinks sdb is a spare?
Can it be corrected?
Thanks again,
Tony
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