Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
I would guess so, but you know your system better than us. I can't see any reason though why you would want to use a single RAID member as a DRBD device... Using the RAID device makes a lot more sense. On 07/11/2012 01:49 PM, Lin Zhao wrote: > I think we've found the cause here. Below is the mdadm output. Should we > use /dev/md2 instead of sda2 in the drbd conf? > / > / > /[root at mbus5 ~]# mdadm --misc -D /dev/md2/ > //dev/md2:/ > / Version : 0.90/ > / Creation Time : Tue Nov 29 18:25:35 2011/ > / Raid Level : raid10/ > / Array Size : 1893918720 (1806.18 GiB 1939.37 GB)/ > / Used Dev Size : 946959360 (903.09 GiB 969.69 GB)/ > / Raid Devices : 4/ > / Total Devices : 4/ > /Preferred Minor : 2/ > / Persistence : Superblock is persistent/ > / > / > / Update Time : Fri Jul 6 22:09:18 2012/ > / State : clean/ > / Active Devices : 4/ > /Working Devices : 4/ > / Failed Devices : 0/ > / Spare Devices : 0/ > / > / > / Layout : near=2/ > / Chunk Size : 256K/ > / > / > / UUID : c4bc887b:ba1a9809:d90d1802:034ea8a8/ > / Events : 0.8/ > / > / > / Number Major Minor RaidDevice State/ > / 0 8 2 0 active sync /dev/sda2/ > / 1 8 18 1 active sync /dev/sdb2/ > / 2 8 34 2 active sync /dev/sdc2/ > / 3 8 50 3 active sync /dev/sdd2/ > > > On Jul 11, 2012, at 10:34 AM, Digimer wrote: > >> It's used by RAID, by the looks of it. What does mdadm say? If it is a >> RAID member, then you need to specify the /dev/mdX device. >> >> Digimer >> >> On 07/11/2012 01:30 PM, Lin Zhao wrote: >>> Thanks for the replies. lsof mentions nothing of sda2. Below is fdsk. >>> Any other means to check what might be blocking it? >>> >>> /[root at mbus5 ~]# fdisk -l /dev/sda/ >>> / >>> / >>> /Disk /dev/sda: 1000.2 GB, 1000204886016 bytes/ >>> /255 heads, 63 sectors/track, 121601 cylinders/ >>> /Units = cylinders of 16065 * 512 = 8225280 bytes/ >>> / >>> / >>> / Device Boot Start End Blocks Id System/ >>> //dev/sda1 * 1 13 104391 fd Linux raid >>> autodetect/ >>> //dev/sda2 14 117904 946959457+ fd Linux raid >>> autodetect/ >>> //dev/sda3 117905 121091 25599577+ fd Linux raid >>> autodetect/ >>> //dev/sda4 121092 121601 4096575 fd Linux raid >>> autodetect/ >>> /[root at mbus5 ~]# / >>> >>> On Jul 11, 2012, at 1:00 AM, Pascal BERTON wrote: >>> >>>> /dev/sda2 ? Wouldn't it sound like a swap partition or something alike ? >>>> Or wouldn't it be already in use by one of the MDs ? >>>> What does "fdisk -l /dev/sda" return ? >>>> >>>> -----Message d'origine----- >>>> De : drbd-user-bounces at lists.linbit.com >>>> <mailto:drbd-user-bounces at lists.linbit.com> >>>> <mailto:drbd-user-bounces at lists.linbit.com> >>>> [mailto:drbd-user-bounces at lists.linbit.com] De la part de Digimer >>>> Envoyé : mercredi 11 juillet 2012 07:13 >>>> À : Lin Zhao >>>> Cc : drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> >>>> <mailto:drbd-user at lists.linbit.com> >>>> Objet : Re: [DRBD-user] Lower device already claimed error >>>> >>>> On 07/10/2012 06:54 PM, Lin Zhao wrote: >>>>> Hi I'm setting up drbd on a Linux 2.6.18-238.el5. When I'm doing >>>>> drbdadmin attach, i get error: >>>>> >>>>> //dev/drbd1: Failure: (114) Lower device is already claimed. This >>>>> usually means it is mounted./ /Command 'drbdsetup /dev/drbd1 disk >>>>> /dev/sda2 /dev/sda2 internal --set-defaults --create-device' >>>>> terminated with exit code 10/ / / >>>>> >>>>> sda2 should by no means be mounted: >>>>> /[root at mbus5 ~]# mount -l/ >>>>> //dev/md1 on / type ext3 (rw,noatime)/ /proc on /proc type proc (rw)/ >>>>> /sysfs on /sys type sysfs (rw)/ /devpts on /dev/pts type devpts >>>>> (rw,gid=5,mode=620)/ >>>>> //dev/md0 on /boot type ext3 (rw)/ >>>>> /tmpfs on /dev/shm type tmpfs (rw)/ >>>>> /none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)/ >>>> >>>> Could it be claimed by LVM or similar? *Something* has it... Any >>>> clues in >>>> 'lsof'? >>>> >>>> -- >>>> Digimer >>>> Papers and Projects: https://alteeve.com >>>> >>>> >>>> _______________________________________________ >>>> drbd-user mailing list >>>> drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> >>>> <mailto:drbd-user at lists.linbit.com> >>>> http://lists.linbit.com/mailman/listinfo/drbd-user >>>> >>>> _______________________________________________ >>>> drbd-user mailing list >>>> drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> >>>> http://lists.linbit.com/mailman/listinfo/drbd-user >>> >>> >>> >>> _______________________________________________ >>> drbd-user mailing list >>> drbd-user at lists.linbit.com <mailto:drbd-user at lists.linbit.com> >>> http://lists.linbit.com/mailman/listinfo/drbd-user >>> >> >> >> -- >> Digimer >> Papers and Projects: https://alteeve.com >> >> > -- Digimer Papers and Projects: https://alteeve.com