[Bug 1135453] Re: open-iscsi +mpio with multipathd init script order errors

[Peter Petrakis]

This might be self inflicted. First, we have really good multipath
documentation now.

You're better off following our docs first and then supplementing it with the vendor
docs if it doesn't work. Many popular SANs have built-in support.

https://help.ubuntu.com/12.04/serverguide/dm-multipath-chapter.html

HP MSA's are already included in the built-in DB, your config file is likely
not needed so lets start by eliminating that as a variable by following these
directions.

https://help.ubuntu.com/12.04/serverguide/multipath-setting-up-dm-
multipath.html#multipath-setup-overview

plus your path alias, and, 
# update-initramfs -u -k all 

To copy the multipath.conf to the ramdisk.

Make all these changes, reboot, and before you shutdown again grab:
 * sudo dmsetup table
 * sudo udisks --dump
 * sudo -i; echo 'show config' | multipathd -k

and attach to the bug. Thanks.

I'm hoping you have a newer MSA and this is just a mp jumbled
config.

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https://bugs.launchpad.net/bugs/1135453

Title:
  open-iscsi +mpio with multipathd init script order errors

Status in “multipath-tools” package in Ubuntu:
  New

Bug description:
  when using open-iscsi and multipathd for a mpio setup there are
  several init script logical issues:

  when shutting down, the system does first stop multipathd and then try
  to umount the filesystem and then stop open-iscsi to the system hangs
  forever on shutdown.

  also when booting up it does mount the partition before multipathd and
  open-iscsi are ready and you get the ubuntu screen that the partition
  could not get mounted, do you want to skip.

  after bootup process you can however mount the partition without any
  issue.

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