[Bug 1540407] Comment bridged from LTC Bugzilla

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------- Comment From thorsten.diehl at de.ibm.com 2016-03-11 05:05 EDT-------
(In reply to comment #27)
> Here's my initial test with the merged multipath-tools test.
> I had the FCP devices enabled with the 0.5.0+git<hash>-1ubuntu2 package
> installed from the merges ppa  and rebooted the system.
>
> After booting, I confirmed the paths were up, then used a vmcp command to
> disconnect the devices.
> I then queried mulitpath over a number of minutes to ensure the path remains
> (but shows faulty).
> After 15 minutues or so I contacted an admin to renable the FCP devices and
> observed the paths
> becoming restored in multipath

Ryan,
congrats, well done. :-) I did an extended test with this multipathd/kpartx on a z/VM guest and in LPAR overnight and it ran very well. Even after 300 "off/on" cycles all paths were "active ready running" at the end.
So, please go ahead with this. I will continue testing this when it is in xenial/main, since some of my other tests rely on this.

I will close this defect when this fix is in xenial/main.

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https://bugs.launchpad.net/bugs/1540407

Title:
  multipathd drops paths of a temporarily lost device

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