Readding a drive fails because of wrong size?

[Scott Baker <bakers@canbytel.com>]

I have a four disk RAID5 array, and one of the HDs got removed from the 
array. All four drives are identical in size and partitioning.

--------------------------------------------------------------------------

Disk /dev/sdc: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sdc1               1       60801   488384032   fd  Linux raid autodetect

Disk /dev/sdd: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1       60801   488384032   fd  Linux raid autodetect

Disk /dev/sde: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sde1               1       60801   488384032   fd  Linux raid autodetect

Disk /dev/sdf: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot      Start         End      Blocks   Id  System
/dev/sdf1               1       60801   488384032   fd  Linux raid autodetect

--------------------------------------------------------------------------

/dev/sde1 needs to get added back into the array, the other three drives 
are fine.

--------------------------------------------------------------------------

/dev/md8:
         Version : 00.90.03
   Creation Time : Fri Oct 26 16:00:51 2007
      Raid Level : raid5
      Array Size : 1465151808 (1397.28 GiB 1500.32 GB)
   Used Dev Size : 488383936 (465.76 GiB 500.11 GB)
    Raid Devices : 4
   Total Devices : 3
Preferred Minor : 8
     Persistence : Superblock is persistent

     Update Time : Thu Jun 25 11:27:31 2009
           State : clean, degraded
  Active Devices : 3
Working Devices : 3
  Failed Devices : 0
   Spare Devices : 0

          Layout : left-symmetric
      Chunk Size : 64K

            UUID : 44c3189a:58ffab82:c2c79482:d044a0fb
          Events : 0.218148

     Number   Major   Minor   RaidDevice State
        0       8       33        0      active sync   /dev/sdc1
        1       8       49        1      active sync   /dev/sdd1
        2       0        0        2      removed
        3       8       81        3      active sync   /dev/sdf1

--------------------------------------------------------------------------

But when I try and add it to the array it gives me a array that the 
partition isn't big enough? Nothing has changed, I haven't formatted or 
anything. All I did was replace a SATA cable and now I can't add that drive 
back to the array? This server is running CentOS 5.3 with all the updates.

--------------------------------------------------------------------------

:./mdadm /dev/md8 --add /dev/sde1
mdadm: /dev/sde1 not large enough to join array

root@white(/tmp/mdadm-2.6.9)
:mdadm --version
mdadm - v2.6.4 - 19th October 2007

--------------------------------------------------------------------------

HELP!