Comment 10 for bug 1499622

Hi Joseph,

We had this issue actually with Ubuntu 12.04.5. But
Jay, who originally created the bugreport, reproduced it on 14.04.
@Jay, could you answer the question?

Thanks,
   //Lisa

-----Original Message-----
From: <email address hidden> [mailto:<email address hidden>] On Behalf Of Joseph Salisbury
Sent: Thursday, November 12, 2015 4:37 PM
To: Elisabeth Kemper
Subject: [Bug 1499622] Re: multipath keep failure after the interface is recovered

Does this issue happen with 14.04.3 or 14.04.4? 14.04.2 is based on the
3.16 kernel, which is no longer supported.

** Tags removed: kernel-da-key
** Tags added: kernel-key

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1499622

Title:
  multipath keep failure after the interface is recovered

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  We encounter a multipath issue on Ubuntu 14.04.2 LTS.

  dm state (i.e. failed) cannot be recovered automatically when the
  interface is back. But path check state (i.e. faulty) can.

  In order to describe the issue clearly, the attached slides shows the detail of reproduce steps.
  Meanwhile, attachment also includes the output from multipath tool.

  P.S. We are writing the IO to the volume through dm device during the
  interface enable/disable.

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