kernel-packages team mailing list archive

["jay.xu" <jay.xu@xxxxxxx>]

Public bug reported:

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.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete

** Attachment added: "Multipath_Issue.zip"
   https://bugs.launchpad.net/bugs/1499622/+attachment/4474036/+files/Multipath_Issue.zip

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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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