RE: Problem rebuild raid 1 replacement disk

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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