try the Fedora cd1 (or the dvd) in linux rescue mode, see if it finds something. __________________ But of course, take the above with a grain of salt... The good news is I didn't screw anything up permanently. I have got to get this array back up today -- the natives are getting restless... -cw- Post 1: Ok, I'm a Linux software raid veteran and I have the scars Quick specs of the server: - 3x 120 GB drives, as RAID5 (1 spare) - Debian Sarge, 2.6 kernel Here's some of the errors that I managed to write down on http://culturahq.com/cannot-start/cannot-start-dirty-degraded-array-for-md2.html
This incident will be reported Is it ethical for a journal to cancel an accepted review request when they have obtained sufficient number of reviews to make a decision? But I would like to get my md2 back (700GB of precious files). more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed But it still won't mount automatically even though I have it in /etc/fstab: /dev/md_d0 /opt ext4 defaults 0 0 So a bonus question: what should I do to make the RAID http://www.linuxquestions.org/questions/linux-general-1/raid5-with-mdadm-does-not-ron-or-rebuild-505361/
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share|improve this answer answered Mar 21 '12 at 22:21 Sean Reifschneider 9821618 add a comment| up vote 4 down vote I was having issues with Ubuntu 10.04 where an error in Anyway, adding the array in the conf-file seems to do the trick. I'll calm down. Get More Information my devices are md0 level=10 devices /dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1 md1 level=5 devices /dev/sda5,/dev/sdb3, /dev/sdc3,/dev/sdd3 doing cat /proc/mdstat shows md1: inactive sdc3 sdb3 sdd3 and md0: active raid10 sdd1 sdc1 sdb3` this makes me
The other ones end with something like "Sleeping forever". Earlier I fiddled with issueing echo "check" > /sys/block/md3/md/array_state (that got it rebuilding itself) and echo "idle" > /sys/block/md3/md/sync_action (that did nothing in my case) because I wanted to stop or i re-added devices successfully to both array. How?
taenus View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by taenus Tags mdadm, raid, raid5 Thread Tools Show Printable Version Email this Page md: pers->run() failed ... Most servers in RaW will have at least one Software RAID array for redundancy. So next I tried to unplug each drive, 1 by 1, and reboot, to see if 1 drive had failed and if the raid would work running of 2 drives.
Newer Than: Search this thread only Search this forum only Display results as threads Useful Searches Recent Posts More... his comment is here I was thinking that since i am re-adding things should be much faster. When CentOS is about to boot and interrupt the boot-countdown: CentOS (2.6.32-279.1.1.el63.i686) CentOS Linux (2.6.32-71.29.1.el6.i686) centos (2.6.32-71.el6.i686) I think the first configuration is the default one, because choosing that gets me Not the answer you're looking for?
Ultimately, I started reading through the kernel source and wandered into a helpful text file Documentation/md.txt in the kernel source tree. md: unbind
I had an unexpected power failure, restarting and fsck tried to run but failed. I had the same problem, with an array showing up as inactive, and nothing I did including the "mdadm --examine --scan >/etc/mdadm.conf", as suggested by others here, helped at all. The drive was good as evidenced by the boot up state and the disk SMART evaluation, and the recent few days.
It always resulted in the same mdadm: failed to RUN_ARRAY /dev/md0: Input/output error. Must be active md2 to can be mounted? You get the UUIDs by doing sudo mdadm -E --scan: $ sudo mdadm -E --scan ARRAY /dev/md0 level=raid5 num-devices=3 UUID=f10f5f96:106599e0:a2f56e56:f5d3ad6d ARRAY /dev/md1 level=raid1 num-devices=2 UUID=aa591bbe:bbbec94d:a2f56e56:f5d3ad6d As you can see you can And I got my files back :-) Thanks again for everyone's help.
mdadm --create /dev/md1 --level=5 --raid-devices=8 /dev/sd[a-g]1 missing Grow an array You can grow both the number of devices (for RAID1) and the size of the devices (for RAID1). I tried anyhting I found about this issue, but nothing helps. Tomorrow I'll buy another clean disk and add it to the array to see if that helps but in the meantime can anyone offer any help? navigate here Rebooting the machine causes your RAID devices to be stopped on shutdown (mdadm --stop /dev/md3) and restarted on startup (mdadm --assemble /dev/md3 /dev/sd[a-e]7).
Last edited by myrons41; 03-23-2007 at 06:42 AM. do_exit+0x741/0x750 [
Top pjwelsh Posts: 2570 Joined: 2007/01/07 02:18:02 Location: Central IL USA Re: can not mount RAID Quote Postby pjwelsh » 2010/11/18 13:32:03 Can you force the assembly via "mdadm --assemble --force To change the number of active devices in an array: mdadm --grow
I was going to simply post a link to all my sordid details over on Linux Forums, but I'm not allowed, so I'll repost them here. If the physical machine gets pulled out of the data centre then I strongly recomment adding a DRAC. (or configuring the already present one). –Hennes Sep 8 '12 at 15:33 add If it is Linux Related and doesn't seem to fit in any other forum then this is the place. On reading this thread I found that the md2 RAID device had a new UUID and the machine was trying to use the old one.
The status of the new drive became "sync", the array status remained inactive, and no resync took place: Code: [[email protected] ~]# cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] md0 : inactive as documented in the /usr/linux/Documentation/md.txt (cwilkins post). using 'md2' output from mdadm --examine --scan I edited /etc/mdadm/mdadm.conf and replaced the old UUID line with the one output from above command and my problem went away. Ballpark salary equivalent today of "healthcare benefits" in the US?
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