[Kernel-packages] [Bug 1425773] Comment bridged from LTC Bugzilla
--- Comment From vaish...@in.ibm.com 2015-03-17 08:19 EDT--- *** Bug 122657 has been marked as a duplicate of this bug. *** -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425773 Title: multipath command not showing boot disk information Status in linux package in Ubuntu: New Bug description: == Comment: #0 - GIRISH SHRIGIRI gshri...@in.ibm.com - 2015-02-18 05:57:13 == multipath -ll command not showing proper boot disk . i have assigned 60G ds8k SAN disk and rest IO Disk of sizes 20G and 10G from ds8k and XIV. lsblk and lsscsi -s shows proper boot disk name ( sdq ) but multipath -ll shows wrong result and also shows wrong size ( showing 20G ) please have a look into it . root@zop01:/# multipath -ll mpath2 (200173800277f06f5) dm-4 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:2 sdj 8:144 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:2 sdn 8:208 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:2 sdz 65:144 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:2 sdad 65:208 active ready running mpath1 (200173800277f06f7) dm-6 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:4 sdl 8:176 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:4 sdp 8:240 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:4 sdab 65:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:4 sdaf 65:240 active ready running mpath0 (200173800277f06f4) dm-3 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:1 sdi 8:128 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:1 sdm 8:192 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:1 sdy 65:128 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:1 sdac 65:192 active ready running mpath9 (200173800277f06f0) dm-7 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:1 sdag 66:0 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:1 sdan 66:112 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:2:1 sdar 66:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:4:1 sday 67:32 active ready running mpath8 (200173800277f06f3) dm-10 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:4 sdaj 66:48 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:4:4 sdbb 67:80 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:4 sdaq 66:160 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:2:4 sdau 66:224 active ready running mpath14 (36005076309ffc2f00331) dm-13 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076969475 sdam 66:96 active ready running `- 5:0:3:1076969475 sdax 67:16 active ready running mpath13 (36005076309ffc2f00330) dm-12 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076903939 sdal 66:80 active ready running `- 5:0:3:1076903939 sdaw 67:0 active ready running mpath6 (36005076309ffc2f0032e) dm-2 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 2:0:0:1076772867 sdd 8:48 active ready running |- 2:0:1:1076772867 sdh 8:112 active ready running |- 3:0:0:1076772867 sdt 65:48 active ready running `- 3:0:1:1076772867 sdx 65:112 active ready running mpath12 (36005076309ffc2f0032f) dm-11 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076838403 sdak 66:64 active ready running `- 5:0:3:1076838403 sdav 66:240 active ready running mpath5 (36005076309ffc2f0032d) dm-1 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 2:0:0:1076707331 sdc 8:32 active ready running |-
[Kernel-packages] [Bug 1425773] Comment bridged from LTC Bugzilla
--- Comment From mauri...@br.ibm.com 2015-03-16 15:48 EDT--- Per the internal discussion, this may be a duplicate of LP 1429327 / LTC BZ 122037. During early boot (initramfs), the multipath command may run *before* the completion of the SCSI scan over FC ports, but the mount of root filesystem will wait for it. As a result, the SCSI disks over FC are not assigned to multipath devices, and the UUIDs will be assigned to them (because no mpathX devices will be created). Thus, the system boots off the one-path device rather than the multipath device, due to the root=UUID specification. If the bug reported run the multipath command after the system booted, there will be the mpathX devices for the SCSI disks over FC, but those were not present at the time the initramfs assigned UUIDs pivot'ed the root filesystem. I'll be looking at this when the system is available for debugging. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425773 Title: multipath command not showing boot disk information Status in linux package in Ubuntu: New Bug description: == Comment: #0 - GIRISH SHRIGIRI gshri...@in.ibm.com - 2015-02-18 05:57:13 == multipath -ll command not showing proper boot disk . i have assigned 60G ds8k SAN disk and rest IO Disk of sizes 20G and 10G from ds8k and XIV. lsblk and lsscsi -s shows proper boot disk name ( sdq ) but multipath -ll shows wrong result and also shows wrong size ( showing 20G ) please have a look into it . root@zop01:/# multipath -ll mpath2 (200173800277f06f5) dm-4 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:2 sdj 8:144 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:2 sdn 8:208 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:2 sdz 65:144 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:2 sdad 65:208 active ready running mpath1 (200173800277f06f7) dm-6 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:4 sdl 8:176 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:4 sdp 8:240 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:4 sdab 65:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:4 sdaf 65:240 active ready running mpath0 (200173800277f06f4) dm-3 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:1 sdi 8:128 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:1 sdm 8:192 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:1 sdy 65:128 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:1 sdac 65:192 active ready running mpath9 (200173800277f06f0) dm-7 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:1 sdag 66:0 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:1 sdan 66:112 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:2:1 sdar 66:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:4:1 sday 67:32 active ready running mpath8 (200173800277f06f3) dm-10 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:4 sdaj 66:48 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:4:4 sdbb 67:80 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:4 sdaq 66:160 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:2:4 sdau 66:224 active ready running mpath14 (36005076309ffc2f00331) dm-13 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076969475 sdam 66:96 active ready running `- 5:0:3:1076969475 sdax 67:16 active ready running mpath13 (36005076309ffc2f00330) dm-12 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076903939 sdal 66:80 active ready running `- 5:0:3:1076903939 sdaw 67:0 active ready running mpath6 (36005076309ffc2f0032e) dm-2 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1
[Kernel-packages] [Bug 1425773] Comment bridged from LTC Bugzilla
--- Comment From helle...@us.ibm.com 2015-03-16 17:27 EDT--- *** Bug 122657 has been marked as a duplicate of this bug. *** -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425773 Title: multipath command not showing boot disk information Status in linux package in Ubuntu: New Bug description: == Comment: #0 - GIRISH SHRIGIRI gshri...@in.ibm.com - 2015-02-18 05:57:13 == multipath -ll command not showing proper boot disk . i have assigned 60G ds8k SAN disk and rest IO Disk of sizes 20G and 10G from ds8k and XIV. lsblk and lsscsi -s shows proper boot disk name ( sdq ) but multipath -ll shows wrong result and also shows wrong size ( showing 20G ) please have a look into it . root@zop01:/# multipath -ll mpath2 (200173800277f06f5) dm-4 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:2 sdj 8:144 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:2 sdn 8:208 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:2 sdz 65:144 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:2 sdad 65:208 active ready running mpath1 (200173800277f06f7) dm-6 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:4 sdl 8:176 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:4 sdp 8:240 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:4 sdab 65:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:4 sdaf 65:240 active ready running mpath0 (200173800277f06f4) dm-3 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:1 sdi 8:128 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:1 sdm 8:192 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:1 sdy 65:128 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:1 sdac 65:192 active ready running mpath9 (200173800277f06f0) dm-7 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:1 sdag 66:0 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:1 sdan 66:112 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:2:1 sdar 66:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:4:1 sday 67:32 active ready running mpath8 (200173800277f06f3) dm-10 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:4 sdaj 66:48 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:4:4 sdbb 67:80 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:4 sdaq 66:160 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:2:4 sdau 66:224 active ready running mpath14 (36005076309ffc2f00331) dm-13 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076969475 sdam 66:96 active ready running `- 5:0:3:1076969475 sdax 67:16 active ready running mpath13 (36005076309ffc2f00330) dm-12 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076903939 sdal 66:80 active ready running `- 5:0:3:1076903939 sdaw 67:0 active ready running mpath6 (36005076309ffc2f0032e) dm-2 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 2:0:0:1076772867 sdd 8:48 active ready running |- 2:0:1:1076772867 sdh 8:112 active ready running |- 3:0:0:1076772867 sdt 65:48 active ready running `- 3:0:1:1076772867 sdx 65:112 active ready running mpath12 (36005076309ffc2f0032f) dm-11 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076838403 sdak 66:64 active ready running `- 5:0:3:1076838403 sdav 66:240 active ready running mpath5 (36005076309ffc2f0032d) dm-1 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 2:0:0:1076707331 sdc 8:32 active ready running |-
[Kernel-packages] [Bug 1425773] Comment bridged from LTC Bugzilla
--- Comment From helle...@us.ibm.com 2015-02-26 16:51 EDT--- Hi Brian, As you observed, grub.cfg has root=UUID=e3142d5d-f8f1-4278-a08a- 6bda31d2dc79 as it's default entry, and has alternate entries for /dev/sda, sde, sdq and sdu also. None of these drives is in a multipath group. Is the expectation here that these should belong to a multipath group, and the system should be booted from the multipath device? Should this UUID be pointing to a multipath device instead of a single path? Could this have been an install problem? Given that the UUID points to a single path device, it does look correct as it's booted currently: root@zop01:~# cat /proc/cmdline BOOT_IMAGE=/boot/vmlinux-3.18.0-13-generic root=UUID=e3142d5d-f8f1-4278-a08a-6bda31d2dc79 ro splash quiet root@zop01:~# ll /dev/disk/by-uuid/*c79 lrwxrwxrwx 1 root root 10 Feb 18 07:11 /dev/disk/by-uuid/e3142d5d-f8f1-4278-a08a-6bda31d2dc79 - ../../sdu2 root@zop01:~# mount /dev/sdq2 on / type ext4 (rw,errors=remount-ro) Second, on the /etc/fstab: root@zop01:~# cat /etc/fstab # /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # file system mount point type options dump pass /dev/mapper/mpath0p2 / ext4errors=remount-ro 0 1 /dev/mapper/mpath0p3 noneswapsw 0 0 ... Again we see this naming inconsistency, Currently, this system has only the /dev/mapper/mpathX-partX names, none of the /dev/mapper/mpathXpX names. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425773 Title: multipath command not showing boot disk information Status in linux package in Ubuntu: New Bug description: == Comment: #0 - GIRISH SHRIGIRI gshri...@in.ibm.com - 2015-02-18 05:57:13 == multipath -ll command not showing proper boot disk . i have assigned 60G ds8k SAN disk and rest IO Disk of sizes 20G and 10G from ds8k and XIV. lsblk and lsscsi -s shows proper boot disk name ( sdq ) but multipath -ll shows wrong result and also shows wrong size ( showing 20G ) please have a look into it . root@zop01:/# multipath -ll mpath2 (200173800277f06f5) dm-4 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:2 sdj 8:144 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:2 sdn 8:208 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:2 sdz 65:144 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:2 sdad 65:208 active ready running mpath1 (200173800277f06f7) dm-6 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:4 sdl 8:176 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:4 sdp 8:240 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:4 sdab 65:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:4 sdaf 65:240 active ready running mpath0 (200173800277f06f4) dm-3 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:1 sdi 8:128 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:1 sdm 8:192 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:1 sdy 65:128 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:1 sdac 65:192 active ready running mpath9 (200173800277f06f0) dm-7 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:1 sdag 66:0 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:1 sdan 66:112 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:2:1 sdar 66:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:4:1 sday 67:32 active ready running mpath8 (200173800277f06f3) dm-10 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:4 sdaj 66:48 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:4:4 sdbb 67:80 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:4 sdaq 66:160 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:2:4 sdau 66:224
[Kernel-packages] [Bug 1425773] Comment bridged from LTC Bugzilla
--- Comment From bjki...@us.ibm.com 2015-02-26 21:17 EDT--- (In reply to comment #21) Hi Brian, As you observed, grub.cfg has root=UUID=e3142d5d-f8f1-4278-a08a-6bda31d2dc79 as it's default entry, and has alternate entries for /dev/sda, sde, sdq and sdu also. None of these drives is in a multipath group. Is the expectation here that these should belong to a multipath group, and the system should be booted from the multipath device? Yes. Looking at the output of scsi_id for these devices, we see they are the same underlying device: root@zop01:~# /lib/udev/scsi_id -p 0x83 -g -d /dev/sda 36005076309ffc2f00095 root@zop01:~# /lib/udev/scsi_id -p 0x83 -g -d /dev/sde 36005076309ffc2f00095 root@zop01:~# /lib/udev/scsi_id -p 0x83 -g -d /dev/sdq 36005076309ffc2f00095 root@zop01:~# /lib/udev/scsi_id -p 0x83 -g -d /dev/sdu 36005076309ffc2f00095 Should this UUID be pointing to a multipath device instead of a single path? Yes. Could this have been an install problem? Yes. Girish - can you confirm when you installed the system you enabled multipath in the installer? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425773 Title: multipath command not showing boot disk information Status in linux package in Ubuntu: New Bug description: == Comment: #0 - GIRISH SHRIGIRI gshri...@in.ibm.com - 2015-02-18 05:57:13 == multipath -ll command not showing proper boot disk . i have assigned 60G ds8k SAN disk and rest IO Disk of sizes 20G and 10G from ds8k and XIV. lsblk and lsscsi -s shows proper boot disk name ( sdq ) but multipath -ll shows wrong result and also shows wrong size ( showing 20G ) please have a look into it . root@zop01:/# multipath -ll mpath2 (200173800277f06f5) dm-4 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:2 sdj 8:144 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:2 sdn 8:208 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:2 sdz 65:144 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:2 sdad 65:208 active ready running mpath1 (200173800277f06f7) dm-6 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:4 sdl 8:176 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:4 sdp 8:240 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:4 sdab 65:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:4 sdaf 65:240 active ready running mpath0 (200173800277f06f4) dm-3 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 2:0:6:1 sdi 8:128 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 2:0:7:1 sdm 8:192 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 3:0:6:1 sdy 65:128 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 3:0:7:1 sdac 65:192 active ready running mpath9 (200173800277f06f0) dm-7 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:1 sdag 66:0 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:1 sdan 66:112 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:2:1 sdar 66:176 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:4:1 sday 67:32 active ready running mpath8 (200173800277f06f3) dm-10 IBM,2810XIV size=16G features='0' hwhandler='0' wp=rw |-+- policy='round-robin 0' prio=1 status=active | `- 4:0:2:4 sdaj 66:48 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 5:0:4:4 sdbb 67:80 active ready running |-+- policy='round-robin 0' prio=1 status=enabled | `- 4:0:4:4 sdaq 66:160 active ready running `-+- policy='round-robin 0' prio=1 status=enabled `- 5:0:2:4 sdau 66:224 active ready running mpath14 (36005076309ffc2f00331) dm-13 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076969475 sdam 66:96 active ready running `- 5:0:3:1076969475 sdax 67:16 active ready running mpath13 (36005076309ffc2f00330) dm-12 IBM,2107900 size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw `-+- policy='round-robin 0' prio=1 status=active |- 4:0:3:1076903939 sdal 66:80