From: Andrew Dunn <andrew.g.dunn@gmail.com>
To: Roger Heflin <rogerheflin@gmail.com>
Cc: linux-raid list <linux-raid@vger.kernel.org>
Subject: Re: RAID 6 Failure follow up
Date: Sun, 08 Nov 2009 09:36:54 -0500 [thread overview]
Message-ID: <4AF6D786.6070505@gmail.com> (raw)
In-Reply-To: <4AF6D461.3050109@gmail.com>
[10:0:0:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sde
[10:0:1:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdf
[10:0:2:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdg
[10:0:3:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdh
[11:0:0:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdi
[11:0:1:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdj
[11:0:2:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdk
[11:0:3:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdl
[11:0:4:0] disk ATA WDC WD1001FALS-0 0K05 /dev/sdm
So 4 drives dropped out on the second controller. But why didnt sdm go
with them?
Roger Heflin wrote:
> Andrew Dunn wrote:
>> This is kind of interesting:
>>
>> storrgie@ALEXANDRIA:~$ sudo mdadm --assemble --force /dev/md0
>> mdadm: no devices found for /dev/md0
>>
>> All of the devices are there in /dev, so I wanted to examine them:
>>
>> storrgie@ALEXANDRIA:~$ sudo mdadm --examine /dev/sde1
>> /dev/sde1:
>> Magic : a92b4efc
>> Version : 00.90.00
>> UUID : 397e0b3f:34cbe4cc:613e2239:070da8c8 (local to host
>> ALEXANDRIA)
>> Creation Time : Fri Nov 6 07:06:34 2009
>> Raid Level : raid6
>> Used Dev Size : 976759808 (931.51 GiB 1000.20 GB)
>> Array Size : 6837318656 (6520.58 GiB 7001.41 GB)
>> Raid Devices : 9
>> Total Devices : 9
>> Preferred Minor : 0
>>
>> Update Time : Sun Nov 8 08:57:04 2009
>> State : clean
>> Active Devices : 5
>> Working Devices : 5
>> Failed Devices : 4
>> Spare Devices : 0
>> Checksum : 4ff41c5f - correct
>> Events : 43
>>
>> Chunk Size : 1024K
>>
>> Number Major Minor RaidDevice State
>> this 0 8 65 0 active sync /dev/sde1
>>
>> 0 0 8 65 0 active sync /dev/sde1
>> 1 1 8 81 1 active sync /dev/sdf1
>> 2 2 8 97 2 active sync /dev/sdg1
>> 3 3 8 113 3 active sync /dev/sdh1
>> 4 4 0 0 4 faulty removed
>> 5 5 0 0 5 faulty removed
>> 6 6 0 0 6 faulty removed
>> 7 7 0 0 7 faulty removed
>> 8 8 8 193 8 active sync /dev/sdm1
>>
>> First raid device shows the failures....
>>
>> One of the 'removed' devices:
>>
>> storrgie@ALEXANDRIA:~$ sudo mdadm --examine /dev/sdi1
>> /dev/sdi1:
>> Magic : a92b4efc
>> Version : 00.90.00
>> UUID : 397e0b3f:34cbe4cc:613e2239:070da8c8 (local to host
>> ALEXANDRIA)
>> Creation Time : Fri Nov 6 07:06:34 2009
>> Raid Level : raid6
>> Used Dev Size : 976759808 (931.51 GiB 1000.20 GB)
>> Array Size : 6837318656 (6520.58 GiB 7001.41 GB)
>> Raid Devices : 9
>> Total Devices : 9
>> Preferred Minor : 0
>>
>> Update Time : Sun Nov 8 08:53:30 2009
>> State : active
>> Active Devices : 9
>> Working Devices : 9
>> Failed Devices : 0
>> Spare Devices : 0
>> Checksum : 4ff41b2f - correct
>> Events : 21
>>
>> Chunk Size : 1024K
>>
>> Number Major Minor RaidDevice State
>> this 4 8 129 4 active sync /dev/sdi1
>>
>> 0 0 8 65 0 active sync /dev/sde1
>> 1 1 8 81 1 active sync /dev/sdf1
>> 2 2 8 97 2 active sync /dev/sdg1
>> 3 3 8 113 3 active sync /dev/sdh1
>> 4 4 8 129 4 active sync /dev/sdi1
>> 5 5 8 145 5 active sync /dev/sdj1
>> 6 6 8 161 6 active sync /dev/sdk1
>> 7 7 8 177 7 active sync /dev/sdl1
>> 8 8 8 193 8 active sync /dev/sdm1
>>
>
>
> Did you check dmesg and see if there were errors on those disks?
>
>
--
Andrew Dunn
http://agdunn.net
next prev parent reply other threads:[~2009-11-08 14:36 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-08 14:07 RAID 6 Failure follow up Andrew Dunn
2009-11-08 14:23 ` Roger Heflin
2009-11-08 14:30 ` Andrew Dunn
2009-11-08 18:01 ` Richard Scobie
2009-11-08 18:22 ` Andrew Dunn
2009-11-08 18:34 ` Joe Landman
2009-11-08 22:09 ` Andrew Dunn
2009-11-08 22:59 ` Richard Scobie
2009-11-09 2:45 ` Ryan Wagoner
2009-11-09 2:57 ` Richard Scobie
2009-11-09 8:09 ` Gabor Gombas
2009-11-09 10:08 ` Andrew Dunn
2009-11-09 11:34 ` Gabor Gombas
2009-11-09 22:04 ` Andrew Dunn
2009-11-10 10:55 ` Andrew Dunn
2009-11-10 11:34 ` Vincent Schut
2009-11-11 12:34 ` Andrew Dunn
2009-11-11 12:46 ` Vincent Schut
2009-11-17 8:40 ` Vincent Schut
2009-11-10 12:45 ` Ryan Wagoner
2009-11-08 14:36 ` Andrew Dunn [this message]
2009-11-08 14:56 ` Roger Heflin
2009-11-08 17:08 ` Andrew Dunn
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