Hi,
I suppose this is a remnant of the effort to convert all sector counts
to bytes. Consider this output:
root@Thesaurus:~# mdadm -E /dev/sda1
/dev/sda1:
Magic : a92b4efc
Version : 1.1
Feature Map : 0x0
Array UUID : 6b11b1ba:78985745:b320fc1a:1db68bcf
Name : Thesaurus:Crypta (local to host Thesaurus)
Creation Time : Sat Mar 8 16:33:41 2008
Raid Level : raid5
Raid Devices : 4
Avail Dev Size : 578130828 (275.67 GiB 296.00 GB) <--- Correct:
Array Size : 1730162688 (825.01 GiB 885.84 GB) <--- sectors(bytes)
Used Dev Size : 576720896 (275.00 GiB 295.28 GB)
Data Offset : 264 sectors
Super Offset : 0 sectors
State : active
Device UUID : 85e0e62b:56129e5f:b0d82e78:2ace7d37
Update Time : Thu Jan 15 12:42:53 2009
Checksum : 61a32529 - correct
Events : 764390
Layout : left-symmetric
Chunk Size : 2048K
Array Slot : 5 (failed, failed, 2, 3, 0, 1) <--- by the way: wtf?
Array State : uUuu 2 failed <--- ditto
root@Thesaurus:~# mdadm -D /dev/md5
/dev/md5:
Version : 01.01
Creation Time : Sat Mar 8 16:33:41 2008
Raid Level : raid5
Array Size : 865081344 (825.01 GiB 885.84 GB) <--- bytes(bytes)
Used Dev Size : 576720896 (550.00 GiB 590.56 GB) <--- sectors(2xbytes)
Raid Devices : 4
Total Devices : 4
Preferred Minor : 5
Persistence : Superblock is persistent
Update Time : Thu Jan 15 12:42:29 2009
State : active
Active Devices : 4
Working Devices : 4
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 2048K
Name : Thesaurus:Crypta (local to host Thesaurus)
UUID : 6b11b1ba:78985745:b320fc1a:1db68bcf
Events : 764391
Number Major Minor RaidDevice State
4 8 67 0 active sync /dev/sde3
5 8 1 1 active sync /dev/sda1
2 8 19 2 active sync /dev/sdb3
3 8 35 3 active sync /dev/sdc3
root@Thesaurus:~# mdadm -V
mdadm - v2.6.7.1 - 15th October 2008
root@Thesaurus:~# uname -a
Linux Thesaurus 2.6.24.7.th1 #1 PREEMPT Sun May 11 20:18:05 CEST 2008
i686 GNU/Linux
P.S. I know my kernel is old, but I suspect it's a mdadm problem.
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