From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sharif Islam Subject: Re: mdadm: failed to RUN_ARRAY Date: Sat, 09 Oct 2004 11:38:34 -0500 Sender: linux-raid-owner@vger.kernel.org Message-ID: <4168140A.6070300@uiuc.edu> References: <4168064D.3050903@uiuc.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4168064D.3050903@uiuc.edu> To: linux-raid@vger.kernel.org List-Id: linux-raid.ids 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 > Oct 9 10:36:04 pep kernel: [events: 0000000b] > Oct 9 10:36:04 pep kernel: md: bind > Oct 9 10:36:04 pep kernel: [events: 0000000b] > Oct 9 10:36:04 pep kernel: md: bind > Oct 9 10:36:04 pep kernel: [events: 00000009] > Oct 9 10:36:04 pep kernel: md: bind > Oct 9 10:36:04 pep kernel: [events: 0000000a] > Oct 9 10:36:04 pep kernel: md: bind > Oct 9 10:36:04 pep kernel: [events: 0000000b] > Oct 9 10:36:04 pep kernel: md: bind > 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 > 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 > 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 > Oct 9 10:36:04 pep kernel: md: export_rdev(hde1) > Oct 9 10:36:04 pep kernel: md: unbind > Oct 9 10:36:04 pep kernel: md: export_rdev(hdh1) > Oct 9 10:36:04 pep kernel: md: unbind > Oct 9 10:36:04 pep kernel: md: export_rdev(hdg1) > Oct 9 10:36:04 pep kernel: md: unbind > 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: > Thanks. > -Sharif > >