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[Bug 1184861] Re: FC attach fails to find multipath devices

 

** Changed in: nova
       Status: Fix Committed => Fix Released

** Changed in: nova
    Milestone: None => havana-2

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https://bugs.launchpad.net/bugs/1184861

Title:
  FC attach fails to find multipath devices

Status in OpenStack Compute (Nova):
  Fix Released

Bug description:
  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)

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