[Bug 1496210] Comment bridged from LTC Bugzilla

[bugproxy]

------- Comment From mauricfo at br.ibm.com 2015-10-07 11:30 EDT-------
Lowering priority.
We're already customizing multipath.conf anyway, and this shouldn't get in the way of other, more serious ship bugs for Canonical.

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https://bugs.launchpad.net/bugs/1496210

Title:
  multipath-tools lacks the default settings for IBM 2810XIV storage
  system

Status in multipath-tools package in Ubuntu:
  New

Bug description:
  ---Problem Description---
  multipath-tools is lacking the settings for IBM 2810XIV storage system

  Specially, the lack of queue_if_no_path is problematic on PowerVM LPM (live partition migration) operations, 
  because I/O errors will trigger filesystem errors, which on ext4 remount the fs in read-only mode, by default.

  Please incorporate this upstream commit in 15.10, 15.04 and 14.04:
      864162b08067d3e55d52996846d10a046956c6d6 Add default values for IBM XIV Storage System.

  ---uname output---
  Ubuntu 15.10, 15.04, and 14.04
   
  ---Additional Hardware Info---
  IBM 2810XIV Storage 

  The upstream commit applies cleanly on 15.10 (0.5.0-based) and 15.04,
  14.04 (0.4.9-based).

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