Hello,
I see somewhat strange reports for a RAID6 array of 6 disks:
# cat /proc/mdstat
Personalities : [raid1] [raid6] [raid5] [raid4]
md2 : active raid6 sdc[0] sdh[6] sdg[4] sdf[3] sde[2] sdd[1]
1953545792 blocks super 1.0 level 6, 16k chunk, algorithm 2 [6/6] [UUUUUU]
...
Oops? I see disks 0, 1, 2, 3, 4, and 6 - why 6 and not 5 ?
If I check the devices, I see for example this:
# mdadm -Q --examine /dev/sdc
mdadm: metadata format 1.00 unknown, ignored.
/dev/sdc:
Magic : a92b4efc
Version : 1.0
Feature Map : 0x0
Array UUID : ed815df1:a9df9e8e:a65e948f:17ef5557
Name : 1
Creation Time : Sat Apr 12 00:02:52 2008
Raid Level : raid6
Raid Devices : 6
Avail Dev Size : 976772896 (465.76 GiB 500.11 GB)
Array Size : 3907091584 (1863.05 GiB 2000.43 GB)
Super Offset : 976773152 sectors
State : clean
Device UUID : bc286549:0267dd3b:ce683a7c:66341111
Update Time : Mon Jan 12 13:02:52 2009
Checksum : 62b5e607 - correct
Events : 35060
Chunk Size : 16K
Array Slot : 0 (0, 1, 2, 3, 4, failed, 5)
Array State : Uuuuuu 1 failed
What does the "metadata format 1.00 unknown, ignored." mean, and how
can I fix it? And why does it report "Array State ... 1 failed"?
[This is on a standard Fedora 10 system.]
Any help welcome - thanks in advance.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@xxxxxxx
The ultimate barrier is one's viewpoint.
- Terry Pratchett, _The Dark Side of the Sun_
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