From: Sharif Islam <mislam@uiuc.edu>
To: linux-raid@vger.kernel.org
Subject: Re: mdadm: failed to RUN_ARRAY
Date: Sat, 09 Oct 2004 11:38:34 -0500 [thread overview]
Message-ID: <4168140A.6070300@uiuc.edu> (raw)
In-Reply-To: <4168064D.3050903@uiuc.edu>
Ok, more on this. I think two of my RAID drives failed. and after I
posted the email below, I did something that I am guessign I shouldn't
have.
mdadm --zero-superblock /dev/hdk1
mdadm --zero-superblock /dev/hdi1
Should I try recreating the array in degrading mode.
mdadm --create /dev/md0 --level=5 /dev/hde1 /dev/hdf1 /dev/hdg1 /dev/hdh1 missing
But I think that only works with one failed device.
-Sharif
Sharif Islam wrote:
> One of my RAID 5 stopped last night. I get this when I try to
> restart it:
> [root@pep raid]# mdadm -A /dev/md0
> mdadm: device 5 in /dev/md0 has wrong state in superblock, but
> /dev/hdk1 seems ok
> mdadm: failed to RUN_ARRAY /dev/md0: Invalid argument
>
> Is my hdk1 gone. Should I try to replace that?
>
> from dmesg:
>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdf1)
> Oct 9 10:36:04 pep kernel: [events: 0000000b]
> Oct 9 10:36:04 pep kernel: md: bind<hdf1,1>
> Oct 9 10:36:04 pep kernel: [events: 0000000b]
> Oct 9 10:36:04 pep kernel: md: bind<hdg1,2>
> Oct 9 10:36:04 pep kernel: [events: 0000000b]
> Oct 9 10:36:04 pep kernel: md: bind<hdh1,3>
> Oct 9 10:36:04 pep kernel: [events: 00000009]
> Oct 9 10:36:04 pep kernel: md: bind<hdi1,4>
> Oct 9 10:36:04 pep kernel: [events: 0000000a]
> Oct 9 10:36:04 pep kernel: md: bind<hdk1,5>
> Oct 9 10:36:04 pep kernel: [events: 0000000b]
> Oct 9 10:36:04 pep kernel: md: bind<hde1,6>
> Oct 9 10:36:04 pep kernel: md: hde1's event counter: 0000000b
> Oct 9 10:36:04 pep kernel: md: hdk1's event counter: 0000000a
> Oct 9 10:36:04 pep kernel: md: hdi1's event counter: 00000009
> Oct 9 10:36:04 pep kernel: md: hdh1's event counter: 0000000b
> Oct 9 10:36:04 pep kernel: md: hdg1's event counter: 0000000b
> Oct 9 10:36:04 pep kernel: md: hdf1's event counter: 0000000b
> Oct 9 10:36:04 pep kernel: md: superblock update time inconsistency
> -- using the most recent one
> Oct 9 10:36:04 pep kernel: md: freshest: hde1
> Oct 9 10:36:04 pep kernel: md: kicking non-fresh hdi1 from array!
> Oct 9 10:36:04 pep kernel: md: unbind<hdi1,5>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdi1)
> Oct 9 10:36:04 pep kernel: md0: removing former faulty hdi1!
> Oct 9 10:36:04 pep kernel: md0: kicking faulty hdk1!
> Oct 9 10:36:04 pep kernel: md: unbind<hdk1,4>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdk1)
> Oct 9 10:36:04 pep kernel: md: md0: raid array is not clean --
> starting background reconstruction
> Oct 9 10:36:04 pep kernel: md0: max total readahead window set to 2560k
> Oct 9 10:36:04 pep kernel: md0: 5 data-disks, max readahead per
> data-disk: 512k
> Oct 9 10:36:04 pep kernel: raid5: device hde1 operational as raid disk 0
> Oct 9 10:36:04 pep kernel: raid5: device hdh1 operational as raid disk 3
> Oct 9 10:36:04 pep kernel: raid5: device hdg1 operational as raid disk 2
> Oct 9 10:36:04 pep kernel: raid5: device hdf1 operational as raid disk 1
> Oct 9 10:36:04 pep kernel: raid5: not enough operational devices for
> md0 (2/6 failed)
> Oct 9 10:36:04 pep kernel: RAID5 conf printout:
> Oct 9 10:36:04 pep kernel: --- rd:6 wd:4 fd:2
> Oct 9 10:36:04 pep kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:hde1
> Oct 9 10:36:04 pep kernel: disk 1, s:0, o:1, n:1 rd:1 us:1 dev:hdf1
> Oct 9 10:36:04 pep kernel: disk 2, s:0, o:1, n:2 rd:2 us:1 dev:hdg1
> Oct 9 10:36:04 pep kernel: disk 3, s:0, o:1, n:3 rd:3 us:1 dev:hdh1
> Oct 9 10:36:04 pep kernel: disk 4, s:0, o:0, n:4 rd:4 us:1 dev:[dev
> 00:00]
> Oct 9 10:36:04 pep kernel: disk 5, s:0, o:0, n:5 rd:5 us:1 dev:[dev
> 00:00]
> Oct 9 10:36:04 pep kernel: raid5: failed to run raid set md0
> Oct 9 10:36:04 pep kernel: md: pers->run() failed ...
> Oct 9 10:36:04 pep kernel: md: md0 stopped.
> Oct 9 10:36:04 pep kernel: md: unbind<hde1,3>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hde1)
> Oct 9 10:36:04 pep kernel: md: unbind<hdh1,2>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdh1)
> Oct 9 10:36:04 pep kernel: md: unbind<hdg1,1>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdg1)
> Oct 9 10:36:04 pep kernel: md: unbind<hdf1,0>
> Oct 9 10:36:04 pep kernel: md: export_rdev(hdf1)
>
> [root@pep raid]# cat /proc/mdstat
> Personalities : [raid5]
> read_ahead not set
> unused devices: <none
>
> Thanks.
> -Sharif
>
>
next prev parent reply other threads:[~2004-10-09 16:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-09 15:39 mdadm: failed to RUN_ARRAY Sharif Islam
2004-10-09 16:38 ` Sharif Islam [this message]
2004-10-11 16:16 ` recreate superblock? (was Re: mdadm: failed to RUN_ARRAY) Sharif Islam
2004-10-11 13:42 ` Mike Tran
2004-10-11 19:09 ` Sharif Islam
2004-10-11 20:00 ` Worked!! " Sharif Islam
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