Comment 11 for bug 1443977

On another env:

3 volumes attached to instance:

root@node-7:~# iscsiadm --mode session ; multipath -ll
tcp: [2] 192.168.1.4:3260,1 iqn.2010-10.org.openstack:volume-140028ac-ded0-4508-8843-e6b7033ae5a8
tcp: [3] 192.168.1.4:3260,1 iqn.2010-10.org.openstack:volume-44fd8a87-0548-4bea-9edc-791194476d02
tcp: [4] 192.168.1.4:3260,1 iqn.2010-10.org.openstack:volume-d87fef38-ebdc-47ba-b2af-93dcb556f8cd
33000000300000001 dm-5 IET,VIRTUAL-DISK
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 5:0:0:1 sdc 8:32 active ready running
33000000100000001 dm-3 IET,VIRTUAL-DISK
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 3:0:0:1 sda 8:0 active ready running
33000000200000001 dm-4 IET,VIRTUAL-DISK
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 4:0:0:1 sdb 8:16 active ready running

Detached one of them:

root@node-7:~# iscsiadm --mode session ; multipath -ll
tcp: [3] 192.168.1.4:3260,1 iqn.2010-10.org.openstack:volume-44fd8a87-0548-4bea-9edc-791194476d02
tcp: [4] 192.168.1.4:3260,1 iqn.2010-10.org.openstack:volume-d87fef38-ebdc-47ba-b2af-93dcb556f8cd
33000000300000001 dm-5 IET,VIRTUAL-DISK
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 5:0:0:1 sdc 8:32 active ready running
33000000100000001 dm-3 ,
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=active
  `- #:#:#:# - #:# active faulty running
33000000200000001 dm-4 IET,VIRTUAL-DISK
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 4:0:0:1 sdb 8:16 active ready running

Detached all volumes

root@node-7:~# iscsiadm --mode session ; multipath -ll
iscsiadm: No active sessions.
33000000300000001 dm-5 ,
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=enabled
  `- #:#:#:# - #:# failed faulty running
33000000100000001 dm-3 ,
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=enabled
  `- #:#:#:# - #:# failed faulty running
33000000200000001 dm-4 ,
size=1.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=0 status=enabled
  `- #:#:#:# - #:# failed faulty running

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "6.1"
  openstack_version: "2014.2.2-6.1"
  api: "1.0"
  build_number: "462"
  build_id: "2015-05-24_15-51-50"
  nailgun_sha: "76441596e4fe6420cc7819427662fa244e150177"
  python-fuelclient_sha: "e19f1b65792f84c4a18b5a9473f85ef3ba172fce"
  astute_sha: "0bd72c72369e743376864e8e8dabfe873d40450a"
  fuel-library_sha: "889c2534ceadf8afd5d1540c1cadbd913c0c8c14"
  fuel-ostf_sha: "9a5f55602c260d6c840c8333d8f32ec8cfa65c1f"
  fuelmain_sha: "5c8ebddf64ea93000af2de3ccdb4aa8bb766ce93"

Ubuntu deployment, 1 controller, 1 compute, 1 cinder lvm
Neutron with VLAN segmentation.