From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin ESTRABAUD Subject: Re: More information on linux raid partition problem Date: Thu, 18 Feb 2016 17:26:49 +0000 Message-ID: <56C5FED9.9080001@mpstor.com> References: <56C5F6A4.4040205@digitallyhosted.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: d c , "Admin@DH" Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids sdd2 must be opened by something already. Maybe a RAID is already assembled with that particular device? What does "cat /proc/mdstat" outputs? Otherwise "lsof|grep sdd" might help to find out what has a open handle on that drive. Regards, Ben. On 18/02/16 17:17, d c wrote: > Thank you for the reply. > > Yes that was just a typo when I rerun the command for the e-mail. > > Originally I typed it correct (and that does not work either) > > mdadm --assemble /dev/md0 /dev/sdd2 /dev/sde2 > mdadm: cannot open device /dev/sdd2: Device or resource busy > mdadm: /dev/sdd2 has no superblock - assembly aborted > > On Thu, Feb 18, 2016 at 5:51 PM, Admin@DH wrote: >> You typed: >> >> mdadm --assemble /dev/md0 /dev/hdd2 /dev/hde2 >> >> It should be: >> >> mdadm --assemble /dev/md0 /dev/sdd2 /dev/sde2 >> >> Was that just a typo? >> >> >> On 18/02/2016 16:12, d c wrote: >> >> For anyone who can help me here is some more information on my linux >> raid partition problem. >> >> As stated before, I only have two disks from a three disk raid 5. >> >> When I try: >> >> mdadm --assemble /dev/md0 /dev/hdd2 /dev/hde2 >> >> I get the following error: >> >> mdadm: cannot open device /dev/hdd2: No such file or directory >> mdadm: /dev/hdd2 has no superblock - assembly aborted >> >> When I do a mdadm examine, I get a different number of events: >> >> mdadm --examine /dev/sdd2 | egrep Event >> Events : 60541 >> mdadm --examine /dev/sde2 | egrep Event >> Events : 60544 >> >> Also mdadm examine gives different States: >> >> mdadm --examine /dev/sdd2 | egrep State >> State : active >> mdadm --examine /dev/sde2 | egrep State >> State : clean >> >> But mdadm shows that their Magic and UUID numbers are the same. >> >> Can anyone give suggestions on how I can repair this? >> >> Here are the full mdadm --examine outputs: >> >> mdadm --examine /dev/sdd2 >> /dev/sdd2: >> Magic : a92b4efc >> Version : 0.90.00 >> UUID : 1787919b:a8648f43:ae108b15:09b5fb69 >> Creation Time : Fri Jan 7 17:54:08 2005 >> Raid Level : raid5 >> Used Dev Size : 48194816 (45.96 GiB 49.35 GB) >> Array Size : 96389632 (91.92 GiB 98.70 GB) >> Raid Devices : 3 >> Total Devices : 2 >> Preferred Minor : 126 >> >> Update Time : Tue May 1 15:55:58 2012 >> State : active >> Active Devices : 2 >> Working Devices : 2 >> Failed Devices : 0 >> Spare Devices : 0 >> Checksum : b53ef3cf - correct >> Events : 60541 >> >> Layout : left-symmetric >> Chunk Size : 128K >> >> Number Major Minor RaidDevice State >> this 2 8 66 2 active sync /dev/sde2 >> >> 0 0 0 0 0 removed >> 1 1 8 50 1 active sync /dev/sdd2 >> 2 2 8 66 2 active sync /dev/sde2 >> >> mdadm --examine /dev/sde2 >> /dev/sde2: >> Magic : a92b4efc >> Version : 0.90.00 >> UUID : 1787919b:a8648f43:ae108b15:09b5fb69 >> Creation Time : Fri Jan 7 17:54:08 2005 >> Raid Level : raid5 >> Used Dev Size : 48194816 (45.96 GiB 49.35 GB) >> Array Size : 96389632 (91.92 GiB 98.70 GB) >> Raid Devices : 3 >> Total Devices : 2 >> Preferred Minor : 126 >> >> Update Time : Tue May 1 15:56:20 2012 >> State : clean >> Active Devices : 1 >> Working Devices : 1 >> Failed Devices : 1 >> Spare Devices : 0 >> Checksum : b53fe060 - correct >> Events : 60544 >> >> Layout : left-symmetric >> Chunk Size : 128K >> >> Number Major Minor RaidDevice State >> this 1 8 50 1 active sync /dev/sdd2 >> >> 0 0 0 0 0 removed >> 1 1 8 50 1 active sync /dev/sdd2 >> 2 2 0 0 2 faulty removed >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message tomajordomo@vger.kernel.org >> More majordomo info athttp://vger.kernel.org/majordomo-info.html >> > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >