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https://bugs.launchpad.net/bugs/1096002
Title:
Multipath does not work with EMC 5300 Storage
Status in linux package in Ubuntu:
Incomplete
Bug description:
Hi,
I setup one host installed Ubuntu 12.04 with kernel version 3.2.0.I connect
the host with EMC Stroage of 5300 with FC directly.
I wanted use the feature of multipath, but it does not work.
The log is as below:
the syslog is :
Jan 4 15:32:29 cvknode133 kernel: [14788.818398] device-mapper: table:
252:2: multipath: error getting device
Jan 4 15:32:29 cvknode133 kernel: [14788.826062] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.828229] device-mapper: table:
252:2: multipath: error getting device
Jan 4 15:32:29 cvknode133 kernel: [14788.835525] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.839135] device-mapper: table:
252:2: multipath: error getting device
Jan 4 15:32:29 cvknode133 kernel: [14788.846118] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.849331] device-mapper: table:
252:2: multipath: error getting device
Jan 4 15:32:29 cvknode133 kernel: [14788.855998] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 udevd[19111]: inotify_add_watch(6, /dev/dm-2, 10)
failed: No such file or directory
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.859838] sd 0:0:0:16385: emc:
Invalid information section length 128
Jan 4 15:32:29 cvknode133 kernel: [14788.859842] sd 0:0:0:16385: emc:
detected Clariion FC (Legacy), flags 1
Jan 4 15:32:29 cvknode133 kernel: [14788.859939] sd 0:0:0:16385: emc:
Invalid failover mode 2
Jan 4 15:32:29 cvknode133 kernel: [14788.859942] sd 0:0:0:16385: emc: not
attached
Jan 4 15:32:29 cvknode133 kernel: [14788.866610] device-mapper: table:
252:2: multipath: error attaching hardware handler
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.879802] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 kernel: [14788.882923] sd 0:0:0:16385: emc:
Invalid information section length 128
Jan 4 15:32:29 cvknode133 kernel: [14788.882928] sd 0:0:0:16385: emc:
detected Clariion FC (Legacy), flags 1
Jan 4 15:32:29 cvknode133 kernel: [14788.883019] sd 0:0:0:16385: emc:
Invalid failover mode 2
Jan 4 15:32:29 cvknode133 kernel: [14788.883022] sd 0:0:0:16385: emc: not
attached
Jan 4 15:32:29 cvknode133 kernel: [14788.889542] device-mapper: table:
252:2: multipath: error attaching hardware handler
Jan 4 15:32:29 cvknode133 kernel: [14788.903347] device-mapper: ioctl: error
adding target to table
Jan 4 15:32:29 cvknode133 udevd[19111]: inotify_add_watch(6, /dev/dm-2, 10)
failed: No such file or directory
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
Jan 4 15:32:29 cvknode133 udevd[19111]: inotify_add_watch(6, /dev/dm-2, 10)
failed: No such file or directory
Jan 4 15:32:29 cvknode133 multipathd: dm-2: remove map (uevent)
Jan 4 15:32:29 cvknode133 multipathd: dm-2: devmap not registered, can't
remove
mutlipath -v3 informations:
Jan 04 15:32:29 | sda: state = 2
Jan 04 15:32:29 | sda: checker msg is "cciss_tur checker reports path is down"
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: pgfailover = -1
(internal default)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: pgpolicy = multibus
(controller setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: selector = round-robin 0
(controller setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: features = 0 (controller
setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: hwhandler = 0
(controller setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: rr_weight = 1
(controller setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: minio = 1000 (controller
setting)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: no_path_retry = 12
(controller setting)
Jan 04 15:32:29 | pg_timeout = NONE (internal default)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: set ACT_CREATE (map does
not exist)
Jan 04 15:32:29 | 3600508b1001c685cb4641be8413d66d4: domap (0) failure for
create/reload map
In the kernel source code, in the function: parse_sp_model;
I want to know the reason of that why multipath feature can not work.
Thanks
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