Env
---

  - 'iscsi_helper=tgtdadm' in cinder.conf
  - DevStack 

    cinder:
    4a397ad (Merge "ConsistencyGroup Object", 2015-08-11)
    devstack:
    2f605b0 (Merge "Install cryptsetup on the n-cpu nodes", 2015-08-10)
    glance:
    419a9bb (Merge "Make 'id' a read only property for v2", 2015-08-11)
    keystone:
    0d3767f (Merge "Improve List Role Assignments Filters Performance", 2015-08-11)
    neutron:
    dfadd1a (Merge "Use DeferredOVSBridge in setup_default_table", 2015-08-11)
    nova:
    b156813 (Merge "pci: Use fields.Enum type for PCI device type", 2015-08-11)
    requirements:
    9d99471 (update cliff to 1.14.0, 2015-08-10)


Test
----

$ cinder create --display_name=test_volume2 1

$ nova  boot --flavor 1 --key_name oskey1 --image cirros-0.3.3-x86_64-disk vm2

$ nova list | grep vm2
| 02c2aee9-d748-4b25-aa47-07a0df05eaa2 | vm2  | ACTIVE  | -          | Running     | private=10.1.0.4, fd88:2195:a05b:0:f816:3eff:fef0:4879 |

$ cinder list | grep test_volume2
| 07f0959d-dde2-489b-a367-0450f8d6a5c0 | available | test_volume2 |  1   | lvmdriver-1 |  false   |    False    |                                      |

$ nova volume-attach 02c2aee9-d748-4b25-aa47-07a0df05eaa2 07f0959d-dde2-489b-a367-0450f8d6a5c0
+----------+--------------------------------------+
| Property | Value                                |
+----------+--------------------------------------+
| device   | /dev/vdb                             |
| id       | 07f0959d-dde2-489b-a367-0450f8d6a5c0 |
| serverId | 02c2aee9-d748-4b25-aa47-07a0df05eaa2 |
| volumeId | 07f0959d-dde2-489b-a367-0450f8d6a5c0 |
+----------+--------------------------------------+

$ cat /proc/scsi/scsi
Attached devices:
Host: scsi3 Channel: 00 Id: 00 Lun: 00
  Vendor: IET      Model: Controller       Rev: 0001
  Type:   RAID                             ANSI  SCSI revision: 05
Host: scsi3 Channel: 00 Id: 00 Lun: 01
  Vendor: IET      Model: VIRTUAL-DISK     Rev: 0001
  Type:   Direct-Access                    ANSI  SCSI revision: 05
Host: scsi4 Channel: 00 Id: 00 Lun: 00
  Vendor: IET      Model: Controller       Rev: 0001
  Type:   RAID                             ANSI  SCSI revision: 05
Host: scsi4 Channel: 00 Id: 00 Lun: 01
  Vendor: IET      Model: VIRTUAL-DISK     Rev: 0001
  Type:   Direct-Access                    ANSI  SCSI revision: 05

$ iscsiadm -m session                                                                                                                                            
tcp: [2] 192.169.142.107:3260,1 iqn.2010-10.org.openstack:volume-ce68059e-af86-490a-aa24-bd0902e502f7 (non-flash)
tcp: [3] 192.169.142.107:3260,1 iqn.2010-10.org.openstack:volume-07f0959d-dde2-489b-a367-0450f8d6a5c0 (non-flash)

$ sudo virsh domblklist instance-00000002
Target     Source
------------------------------------------------
vda        /home/kashyapc/src/cloud/data/nova/instances/02c2aee9-d748-4b25-aa47-07a0df05eaa2/disk
vdb        /dev/disk/by-path/ip-192.169.142.107:3260-iscsi-iqn.2010-10.org.openstack:volume-07f0959d-dde2-489b-a367-0450f8d6a5c0-lun-1

$ sudo blockdev --getsize64 /dev/disk/by-path/ip-192.169.142.107:3260-iscsi-iqn.2010-10.org.openstack:volume-07f0959d-dde2-489b-a367-0450f8d6a5c0-lun-1
1073741824

$ sudo targetcli
targetcli shell version 2.1.fb39
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

/> ls
o- / ......................................................................................................................... [...]
  o- backstores .............................................................................................................. [...]
  | o- block .................................................................................................. [Storage Objects: 0]
  | o- fileio ................................................................................................. [Storage Objects: 0]
  | o- pscsi .................................................................................................. [Storage Objects: 0]
  | o- ramdisk ................................................................................................ [Storage Objects: 0]
  | o- user ................................................................................................... [Storage Objects: 0]
  o- iscsi ............................................................................................................ [Targets: 0]
  o- loopback ......................................................................................................... [Targets: 0]
  o- vhost ............................................................................................................ [Targets: 0]
/> 

$ nova rebuild vm2 cirros-0.3.3-x86_64-disk

$ nova list | grep vm2
| 02c2aee9-d748-4b25-aa47-07a0df05eaa2 | vm2  | ACTIVE  | -          | Running     | private=fd88:2195:a05b:0:f816:3eff:fef0:4879, 10.1.0.4 |