Device-mapper Ioctl Error Adding Target To
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Device-mapper: Ioctl: Error Adding Target To Table Suse
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Re: [dm-devel] Fwd: multipath errors Date: Fri, 27 Sep 2013 15:11:04 -0500 On Mon, Sep 23, 2013 at 11:09:18AM +0300, Amitai Alkalay wrote: > Hi, > Sorry for bumping, but I will appreciate any help on this matter.. > multipath error getting device ubuntu Thanks, > Amitai > > ---------- Forwarded message ---------- > From: Amitai Alkalay <[1]amitai
Device Mapper Table 252 0 Multipath Error Getting Device
alkalay work gmail com> > Date: Tue, Sep 10, 2013 at 2:29 PM > Subject: multipath errors > To: [2]dm-devel redhat table 253 3 multipath error getting device com > > hi, > I sometimes see cases where io failed after some path failover, although > there are other valid paths. > I seem to get a lot of the following errors during https://access.redhat.com/solutions/38538 a path removal > (failover): > > Aug 1 08:59:37 lg641 multipathd: 3514f0c532d80000a: failed in domap for removal of path sdcy > Aug 1 08:59:37 lg641 multipathd: uevent trigger error > Aug 1 08:59:37 lg641 multipathd: sdt: remove path (uevent) > Aug 1 08:59:37 lg641 kernel: device-mapper: table: 253:5: multipath: error getting device > Aug 1 08:59:37 lg641 kernel: device-mapper: ioctl: error adding target to table > Aug 1 08:59:37 lg641 https://www.redhat.com/archives/dm-devel/2013-September/msg00168.html multipathd: 3514f0c532d800001: load table [0 21474836480 multipath 0 0 1 1 queue-length 0 12 1 66:240 1 66:80 1 70:192 1 71:96 1 67:176 1 67:112 1 71:224 1 128:128 1 8: > 16 1 69:16 1 69:32 1 8:32 1] > Aug 1 08:59:37 lg641 multipathd: sdt: path removed from map 3514f0c532d800001f > > All the other paths are there, and still multipath decided to fail the io > with no apparent reason.� > > I would appreciate any comment about: > > 1. How can this happen. It shouldn't. The kernel should check through all of the paths before failing. Sometimes some actions on storage arrays temporarily bring all paths down, but even in that case, you should see messages in the logs of multipath trying all the paths before it fails. > 2. How can I increase the log level to understand multipath decisions. in /etc/multipath.conf defaults { ... verbosity 3 } This will add a lot of extra logging. Make sure that your logging isn't rate limited, or you will miss messages exactly when it's most important to see them. > 3. Why do I always see the errors regarding adding target to table. > The only thing I can think think about, that multi
Importance Assigned to Milestone multipath-tools (Ubuntu) Edit Invalid Undecided Unassigned https://bugs.launchpad.net/bugs/985741 Edit You need to log in to change this bug's status. Affecting: multipath-tools (Ubuntu) Filed here by: vincent When: 2012-04-19 Completed: 2012-04-28 Target Distribution Baltix BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Ubuntu Linaro Evaluation Build Ubuntu RTM error getting Package (Find…) Project (Find…) Status Importance Invalid Undecided Assigned to Nobody Me Comment on this change (optional) Email me about changes to this bug report Also affects project (?) Also affects distribution/package Nominate for series Bug Description root@SGELLIN119:~# lsb_release -rd Description: Ubuntu 11.10 Release: 11.10 affect error getting device package: multipath-tools, lvm2 If creating logical volume with Multipath on disk primary partition 1, multipath can’t find the disks. Syslog show such error when booting system kernel: [ 27.604034] device-mapper: table: 252:5: multipath: error getting device kernel: [ 27.604115] device-mapper: ioctl: error adding target to table I use fdisk to create two partitions on one physical lun. Mpath6: /dev/mapper/mpath6-part1 /dev/mapper/mpath6-part2 Mpath7: /dev/mapper/mpath7-part1 /dev/mapper/mpath7-part2 create a logical volume on mpath6-part2, mpath7-part2 Reboot host, there is no exception and error logs. Multipath could Find all devices. root@SGELLIN119:~# multipath -ll | grep SYMM mpath9 (360000970000192602316533030453335) dm-10 EMC,SYMMETRIX mpath8 (360000970000192602316533030453334) dm-6 EMC,SYMMETRIX mpath7 (360000970000192602316533030453333) dm-7 EMC,SYMMETRIX mpath6 (360000970000192602316533030453332) dm-4 EMC,SYMMETRIX mpath5 (360000970000192602316533030453331) dm-3 EMC,SYMMETRIX root@SGELLIN119:~# lvs -v Finding all logical volumes LV VG #Seg Attr LSize Maj Min KMaj KMin Origin Snap% Move Copy% Log Convert LV UUID mlv my_vg 1