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

[Mike Burgener]

if i remember correctly, i made the config from the HP MSA
recommendations for multipathd.conf

here my multipathd.conf config:

defaults {
         udev_dir                /dev
         polling_interval        30
         selector                "round-robin 0"
         path_grouping_policy    multibus
         getuid_callout   "/lib/udev/scsi_id --whitelisted --device=/dev/%n"
         prio_callout            /bin/true
         path_checker            readsector0
         prio                    const
         rr_min_io               100
         rr_weight               uniform
         failback                immediate
         no_path_retry           12
         user_friendly_name      yes
         hardware_handler        "0"
}
blacklist {
         devnode "sda"
         devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
         devnode "^hd[a-z][[0-9]*]"
         devnode "^vd[a-z]"
         devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
}
multipaths {
         multipath {
                 wwid mypseudorandomwwid901243012701704
                 alias mydevname
         }
}

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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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