Bug#833528: multipath-tools

[George Kissandrakis]

Hi,

On Jessie 3.16.0-4-amd64
apt-cache policy multipath-tools
multipath-tools:
  Installed: 0.5.0-6+deb8u2

Before any change multipath configuration was correct (4 devices active)

I tried to add a new LUN
devices are there (with lsscsi)
but multipath configuration is messed up on the old LUN and on the new LUN
devices are missing


360050763998a9023980000001300003d dm-3 IBM,FlashSystem-9840
size=100G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=0 status=enabled
| `- 1:0:1:1  sdi 8:128 active undef running
`-+- policy='round-robin 0' prio=0 status=active
  `- 1:0:0:1  sdg 8:96  active undef running
360050763998a9023980000000a000025 dm-0 IBM,FlashSystem-9840
size=200G features='0' hwhandler='0' wp=rw
|-+- policy='round-robin 0' prio=0 status=enabled
| |- 1:0:1:2  sdc 8:32  active undef running
| |- 12:0:0:2 sdd 8:48  active undef running
| `- 12:0:1:2 sde 8:64  active undef running
`-+- policy='round-robin 0' prio=0 status=active
  `- 1:0:0:2  sdb 8:16  active undef running

I get many of these

[30921165.528541] device-mapper: multipath: Failing path 8:64.
multipathd: io_setup failed
multipathd: sde: unusable path

multipathd.conf is identical to several servers (SLES, Ubuntu)
Only the two Debian jessie servers face this problem
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