Public bug reported:
For FC attached volumes from IBM SVC or DS8000 subsystems the existing code to
find the corresponding multipath devices fails with an error.
This is caused by a different output format of the multpath command which is
not parsed correctly.
An example output of 'multipath -l' would be:
36005076da00638089c000000000004cf dm-2 IBM,2145
size=954M features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=-1 status=active
| |- 6:0:0:0 sdc 8:32 active undef running
| |- 6:0:4:0 sdg 8:96 active undef running
| |- 6:0:2:0 sde 8:64 active undef running
| `- 6:0:6:0 sdi 8:128 active undef running
`-+- policy='round-robin 0' prio=-1 status=enabled
|- 6:0:1:0 sdd 8:48 active undef running
|- 6:0:5:0 sdh 8:112 active undef running
|- 6:0:3:0 sdf 8:80 active undef running
`- 6:0:7:0 sdj 8:144 active undef running
This issue exists in the Grizzly release of Nova (2013.1)
** Affects: ubuntu
Importance: Undecided
Assignee: Patrick Schaefer (pschaef)
Status: In Progress
** Tags: attach fc multipath
** Project changed: nova => ubuntu
** Changed in: ubuntu
Assignee: (unassigned) => Patrick Schaefer (pschaef)
** Changed in: ubuntu
Status: New => In Progress
** Description changed:
- For some FC attached volumes the existing code to find the corresponding
multipath devices fails with an error.
+ For FC attached volumes from IBM SVC or DS8000 subsystems the existing code
to find the corresponding multipath devices fails with an error.
This is caused by a different output format of the multpath command which is
not parsed correctly.
An example output of 'multipath -l' would be:
36005076da00638089c000000000004cf dm-2 IBM,2145
size=954M features='1 queue_if_no_path' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=-1 status=active
| |- 6:0:0:0 sdc 8:32 active undef running
| |- 6:0:4:0 sdg 8:96 active undef running
| |- 6:0:2:0 sde 8:64 active undef running
| `- 6:0:6:0 sdi 8:128 active undef running
`-+- policy='round-robin 0' prio=-1 status=enabled
- |- 6:0:1:0 sdd 8:48 active undef running
- |- 6:0:5:0 sdh 8:112 active undef running
- |- 6:0:3:0 sdf 8:80 active undef running
- `- 6:0:7:0 sdj 8:144 active undef running
+ |- 6:0:1:0 sdd 8:48 active undef running
+ |- 6:0:5:0 sdh 8:112 active undef running
+ |- 6:0:3:0 sdf 8:80 active undef running
+ `- 6:0:7:0 sdj 8:144 active undef running
This issue exists in the Grizzly release of Nova (2013.1)
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https://bugs.launchpad.net/bugs/1184861
Title:
FC attach fails to find multipath devices
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