Storage Node (LVMiSCSI) deployment for RDO Liberty on CentOS 7.2

  Posting bellow via straightforward  RDO Liberty deployment demonstrates
that Storage Node might work as traditional iSCSI Target Server and each
Compute Node is actually iSCSI initiator client. This functionality is provided
by tuning Cinder && Glance Services running on Storage Node. It's also
important to understand that Storage node should be brought up after Controller
to be able connect it's services to AMQP broker running on Controller (rabbitmq-server).

  Following bellow is brief instruction for 4 node deployment test Controller & Network & Compute & Storage  on RDO Liberty (CentOS 7.1), which was performed on Fedora 21 host with KVM/Libvirt Hypervisor  (32 GB RAM, Intel Core i7-4790  Haswell CPU, ASUS Z97-P ) .Four VMs (4 GB RAM, 4 VCPUS)  have been setup.  Controller VM one (management subnet) VNIC, Network Node VM three VNICS (management,vtep's external subnets),  Compute Node VM two VNICS (management,vtep's subnets), Storage Node VM one VNIC (management)
Setup :-

192.169.142.127 - Controller Node
192.169.142.147 - Network Nodes
192.169.142.137 - Compute Node
192.169.142.157 - Storage Node (LVMiSCSI)

*******************************************
Three Libvirt networks created
*******************************************

# cat openstackvms.xml

<network>
   <name>openstackvms</name>
   <uuid>d0e9964a-f91a-40c0-b769-a609aee41bf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr1' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='192.169.142.1' netmask='255.255.255.0'>
     <dhcp>
       <range start='192.169.142.2' end='192.169.142.254' />
     </dhcp>
   </ip>
 </network>


# cat external.xml

<network>
   <name>external</name>
   <uuid>d0e9965b-f92c-40c1-b749-b609aed42cf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr2' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='172.24.4.225' netmask='255.255.255.240'>
     <dhcp>
       <range start='172.24.4.226' end='172.24.4.238' />
     </dhcp>
   </ip>
 </network>

# cat vteps.xml

<network>
   <name>vteps</name>
   <uuid>d0e9965b-f92c-40c1-b749-b609aed42cf2</uuid>
   <forward mode='nat'>
     <nat>
       <port start='1024' end='65535'/>
     </nat>
   </forward>
   <bridge name='virbr3' stp='on' delay='0' />
   <mac address='52:54:00:60:f8:6d'/>
   <ip address='10.0.0.1' netmask='255.255.255.0'>
     <dhcp>
       <range start='10.0.0.1' end='10.0.0.254' />
     </dhcp>
   </ip>
 </network>


# virsh net-list

 Name                 State      Autostart     Persistent

--------------------------------------------------------------------------
 default               active        yes           yes
 openstackvms   active        yes           yes
 external            active        yes           yes
 vteps                 active        yes          yes


*********************************************************************************************************
1. First Libvirt subnet "openstackvms"  serves as management network.
All 4 VM are attached to this subnet
*********************************************************************************************************
2. Second Libvirt subnet "external" serves for simulation external network 
Network Nodes attached to "external",latter on "eth2" interfaces (belongs to "external") which are supposed to be converted into OVS ports of br-ex(s) on Network Nodes. This Libvirt subnet via bridge virbr2 172.24.4.25 provides VMs running on Compute Node access to Internet due to match to external network created by packstack installation 172.24.4.224/28.
*********************************************************************************************************
3. Third Libvirt subnet "vteps" serves  for VTEPs endpoint simulation. Network and Compute Nodes are attached to this subnet.
*********************************************************************************************************


***************************************
Answer file (answer4Node.txt)
***************************************
[general]
CONFIG_SSH_KEY=/root/.ssh/id_rsa.pub
CONFIG_DEFAULT_PASSWORD=
CONFIG_MARIADB_INSTALL=y
CONFIG_GLANCE_INSTALL=y
CONFIG_CINDER_INSTALL=y
CONFIG_MANILA_INSTALL=n
CONFIG_NOVA_INSTALL=y
CONFIG_NEUTRON_INSTALL=y
CONFIG_HORIZON_INSTALL=y
CONFIG_SWIFT_INSTALL=y
CONFIG_CEILOMETER_INSTALL=y
CONFIG_SAHARA_INSTALL=n
CONFIG_HEAT_INSTALL=n
CONFIG_TROVE_INSTALL=n
CONFIG_IRONIC_INSTALL=n
CONFIG_CLIENT_INSTALL=y
CONFIG_NTP_SERVERS=
CONFIG_NAGIOS_INSTALL=n
EXCLUDE_SERVERS=
CONFIG_DEBUG_MODE=n
CONFIG_CONTROLLER_HOST=192.169.142.127
CONFIG_COMPUTE_HOSTS=192.169.142.137
CONFIG_NETWORK_HOSTS=192.169.142.147
CONFIG_VMWARE_BACKEND=n
CONFIG_UNSUPPORTED=y
CONFIG_USE_SUBNETS=n
CONFIG_VCENTER_HOST=
CONFIG_VCENTER_USER=
CONFIG_VCENTER_PASSWORD=
CONFIG_VCENTER_CLUSTER_NAME=
CONFIG_STORAGE_HOST=192.169.142.157
CONFIG_SAHARA_HOST=192.169.142.127
CONFIG_USE_EPEL=y
CONFIG_REPO=
CONFIG_ENABLE_RDO_TESTING=n
CONFIG_RH_USER=
CONFIG_SATELLITE_URL=
CONFIG_RH_PW=
CONFIG_RH_OPTIONAL=y
CONFIG_RH_PROXY=
CONFIG_RH_PROXY_PORT=
CONFIG_RH_PROXY_USER=
CONFIG_RH_PROXY_PW=
CONFIG_SATELLITE_USER=
CONFIG_SATELLITE_PW=
CONFIG_SATELLITE_AKEY=
CONFIG_SATELLITE_CACERT=
CONFIG_SATELLITE_PROFILE=
CONFIG_SATELLITE_FLAGS=
CONFIG_SATELLITE_PROXY=
CONFIG_SATELLITE_PROXY_USER=
CONFIG_SATELLITE_PROXY_PW=
CONFIG_SSL_CACERT_FILE=/etc/pki/tls/certs/selfcert.crt
CONFIG_SSL_CACERT_KEY_FILE=/etc/pki/tls/private/selfkey.key
CONFIG_SSL_CERT_DIR=~/packstackca/
CONFIG_SSL_CACERT_SELFSIGN=y
CONFIG_SELFSIGN_CACERT_SUBJECT_C=--
CONFIG_SELFSIGN_CACERT_SUBJECT_ST=State
CONFIG_SELFSIGN_CACERT_SUBJECT_L=City
CONFIG_SELFSIGN_CACERT_SUBJECT_O=openstack
CONFIG_SELFSIGN_CACERT_SUBJECT_OU=packstack
CONFIG_SELFSIGN_CACERT_SUBJECT_CN=ip-192-169-142-127.ip.secureserver.net
CONFIG_SELFSIGN_CACERT_SUBJECT_MAIL=admin@ip-192-169-142-127.ip.secureserver.net
CONFIG_AMQP_BACKEND=rabbitmq
CONFIG_AMQP_HOST=192.169.142.127
CONFIG_AMQP_ENABLE_SSL=n
CONFIG_AMQP_ENABLE_AUTH=n
CONFIG_AMQP_NSS_CERTDB_PW=PW_PLACEHOLDER
CONFIG_AMQP_AUTH_USER=amqp_user
CONFIG_AMQP_AUTH_PASSWORD=PW_PLACEHOLDER
CONFIG_MARIADB_HOST=192.169.142.127
CONFIG_MARIADB_USER=root
CONFIG_MARIADB_PW=7207ae344ed04957
CONFIG_KEYSTONE_DB_PW=abcae16b785245c3
CONFIG_KEYSTONE_DB_PURGE_ENABLE=True
CONFIG_KEYSTONE_REGION=RegionOne
CONFIG_KEYSTONE_ADMIN_TOKEN=3ad2de159f9649afb0c342ba57e637d9
CONFIG_KEYSTONE_ADMIN_EMAIL=root@localhost
CONFIG_KEYSTONE_ADMIN_USERNAME=admin
CONFIG_KEYSTONE_ADMIN_PW=7049f834927e4468
CONFIG_KEYSTONE_DEMO_PW=bf737b785cfa4398
CONFIG_KEYSTONE_API_VERSION=v2.0
CONFIG_KEYSTONE_TOKEN_FORMAT=UUID
CONFIG_KEYSTONE_SERVICE_NAME=httpd
CONFIG_KEYSTONE_IDENTITY_BACKEND=sql
CONFIG_KEYSTONE_LDAP_URL=ldap://192.169.142.127
CONFIG_KEYSTONE_LDAP_USER_DN=
CONFIG_KEYSTONE_LDAP_USER_PASSWORD=
CONFIG_KEYSTONE_LDAP_SUFFIX=
CONFIG_KEYSTONE_LDAP_QUERY_SCOPE=one
CONFIG_KEYSTONE_LDAP_PAGE_SIZE=-1
CONFIG_KEYSTONE_LDAP_USER_SUBTREE=
CONFIG_KEYSTONE_LDAP_USER_FILTER=
CONFIG_KEYSTONE_LDAP_USER_OBJECTCLASS=
CONFIG_KEYSTONE_LDAP_USER_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_NAME_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_MAIL_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_MASK=-1
CONFIG_KEYSTONE_LDAP_USER_ENABLED_DEFAULT=TRUE
CONFIG_KEYSTONE_LDAP_USER_ENABLED_INVERT=n
CONFIG_KEYSTONE_LDAP_USER_ATTRIBUTE_IGNORE=
CONFIG_KEYSTONE_LDAP_USER_DEFAULT_PROJECT_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ALLOW_CREATE=n
CONFIG_KEYSTONE_LDAP_USER_ALLOW_UPDATE=n
CONFIG_KEYSTONE_LDAP_USER_ALLOW_DELETE=n
CONFIG_KEYSTONE_LDAP_USER_PASS_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_USER_ENABLED_EMULATION_DN=
CONFIG_KEYSTONE_LDAP_USER_ADDITIONAL_ATTRIBUTE_MAPPING=
CONFIG_KEYSTONE_LDAP_GROUP_SUBTREE=
CONFIG_KEYSTONE_LDAP_GROUP_FILTER=
CONFIG_KEYSTONE_LDAP_GROUP_OBJECTCLASS=
CONFIG_KEYSTONE_LDAP_GROUP_ID_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_NAME_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_MEMBER_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_DESC_ATTRIBUTE=
CONFIG_KEYSTONE_LDAP_GROUP_ATTRIBUTE_IGNORE=
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_CREATE=n
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_UPDATE=n
CONFIG_KEYSTONE_LDAP_GROUP_ALLOW_DELETE=n
CONFIG_KEYSTONE_LDAP_GROUP_ADDITIONAL_ATTRIBUTE_MAPPING=
CONFIG_KEYSTONE_LDAP_USE_TLS=n
CONFIG_KEYSTONE_LDAP_TLS_CACERTDIR=
CONFIG_KEYSTONE_LDAP_TLS_CACERTFILE=
CONFIG_KEYSTONE_LDAP_TLS_REQ_CERT=demand
CONFIG_GLANCE_DB_PW=41264fc52ffd4fe8
CONFIG_GLANCE_KS_PW=f6a9398960534797
CONFIG_GLANCE_BACKEND=file
CONFIG_CINDER_DB_PW=5ac08c6d09ba4b69
CONFIG_CINDER_DB_PURGE_ENABLE=True
CONFIG_CINDER_KS_PW=c8cb1ecb8c2b4f6f
CONFIG_CINDER_BACKEND=lvm
CONFIG_CINDER_VOLUMES_CREATE=y
CONFIG_CINDER_VOLUMES_SIZE=5G
CONFIG_CINDER_GLUSTER_MOUNTS=
CONFIG_CINDER_NFS_MOUNTS=
CONFIG_CINDER_NETAPP_LOGIN=
CONFIG_CINDER_NETAPP_PASSWORD=
CONFIG_CINDER_NETAPP_HOSTNAME=
CONFIG_CINDER_NETAPP_SERVER_PORT=80
CONFIG_CINDER_NETAPP_STORAGE_FAMILY=ontap_cluster
CONFIG_CINDER_NETAPP_TRANSPORT_TYPE=http
CONFIG_CINDER_NETAPP_STORAGE_PROTOCOL=nfs
CONFIG_CINDER_NETAPP_SIZE_MULTIPLIER=1.0
CONFIG_CINDER_NETAPP_EXPIRY_THRES_MINUTES=720
CONFIG_CINDER_NETAPP_THRES_AVL_SIZE_PERC_START=20
CONFIG_CINDER_NETAPP_THRES_AVL_SIZE_PERC_STOP=60
CONFIG_CINDER_NETAPP_NFS_SHARES=
CONFIG_CINDER_NETAPP_NFS_SHARES_CONFIG=/etc/cinder/shares.conf
CONFIG_CINDER_NETAPP_VOLUME_LIST=
CONFIG_CINDER_NETAPP_VFILER=
CONFIG_CINDER_NETAPP_PARTNER_BACKEND_NAME=
CONFIG_CINDER_NETAPP_VSERVER=
CONFIG_CINDER_NETAPP_CONTROLLER_IPS=
CONFIG_CINDER_NETAPP_SA_PASSWORD=
CONFIG_CINDER_NETAPP_ESERIES_HOST_TYPE=linux_dm_mp
CONFIG_CINDER_NETAPP_WEBSERVICE_PATH=/devmgr/v2
CONFIG_CINDER_NETAPP_STORAGE_POOLS=
CONFIG_MANILA_DB_PW=PW_PLACEHOLDER
CONFIG_MANILA_KS_PW=PW_PLACEHOLDER
CONFIG_MANILA_BACKEND=generic
CONFIG_MANILA_NETAPP_DRV_HANDLES_SHARE_SERVERS=false
CONFIG_MANILA_NETAPP_TRANSPORT_TYPE=https
CONFIG_MANILA_NETAPP_LOGIN=admin
CONFIG_MANILA_NETAPP_PASSWORD=
CONFIG_MANILA_NETAPP_SERVER_HOSTNAME=
CONFIG_MANILA_NETAPP_STORAGE_FAMILY=ontap_cluster
CONFIG_MANILA_NETAPP_SERVER_PORT=443
CONFIG_MANILA_NETAPP_AGGREGATE_NAME_SEARCH_PATTERN=(.*)
CONFIG_MANILA_NETAPP_ROOT_VOLUME_AGGREGATE=
CONFIG_MANILA_NETAPP_ROOT_VOLUME_NAME=root
CONFIG_MANILA_NETAPP_VSERVER=
CONFIG_MANILA_GENERIC_DRV_HANDLES_SHARE_SERVERS=true
CONFIG_MANILA_GENERIC_VOLUME_NAME_TEMPLATE=manila-share-%s
CONFIG_MANILA_GENERIC_SHARE_MOUNT_PATH=/shares
CONFIG_MANILA_SERVICE_IMAGE_LOCATION=https://www.dropbox.com/s/vi5oeh10q1qkckh/ubuntu_1204_nfs_cifs.qcow2
CONFIG_MANILA_SERVICE_INSTANCE_USER=ubuntu
CONFIG_MANILA_SERVICE_INSTANCE_PASSWORD=ubuntu
CONFIG_MANILA_NETWORK_TYPE=neutron
CONFIG_MANILA_NETWORK_STANDALONE_GATEWAY=
CONFIG_MANILA_NETWORK_STANDALONE_NETMASK=
CONFIG_MANILA_NETWORK_STANDALONE_SEG_ID=
CONFIG_MANILA_NETWORK_STANDALONE_IP_RANGE=
CONFIG_MANILA_NETWORK_STANDALONE_IP_VERSION=4
CONFIG_MANILA_GLUSTERFS_SERVERS=
CONFIG_MANILA_GLUSTERFS_NATIVE_PATH_TO_PRIVATE_KEY=
CONFIG_MANILA_GLUSTERFS_VOLUME_PATTERN=
CONFIG_MANILA_GLUSTERFS_TARGET=
CONFIG_MANILA_GLUSTERFS_MOUNT_POINT_BASE=
CONFIG_MANILA_GLUSTERFS_NFS_SERVER_TYPE=gluster
CONFIG_MANILA_GLUSTERFS_PATH_TO_PRIVATE_KEY=
CONFIG_MANILA_GLUSTERFS_GANESHA_SERVER_IP=
CONFIG_IRONIC_DB_PW=PW_PLACEHOLDER
CONFIG_IRONIC_KS_PW=PW_PLACEHOLDER
CONFIG_NOVA_DB_PURGE_ENABLE=True
CONFIG_NOVA_DB_PW=1e1b5aeeeaf342a8
CONFIG_NOVA_KS_PW=d9583177a2444f06
CONFIG_NOVA_SCHED_CPU_ALLOC_RATIO=16.0
CONFIG_NOVA_SCHED_RAM_ALLOC_RATIO=1.5
CONFIG_NOVA_COMPUTE_MIGRATE_PROTOCOL=tcp
CONFIG_NOVA_COMPUTE_MANAGER=nova.compute.manager.ComputeManager
CONFIG_VNC_SSL_CERT=
CONFIG_VNC_SSL_KEY=
CONFIG_NOVA_COMPUTE_PRIVIF=
CONFIG_NOVA_NETWORK_MANAGER=nova.network.manager.FlatDHCPManager
CONFIG_NOVA_NETWORK_PUBIF=eth0
CONFIG_NOVA_NETWORK_PRIVIF=
CONFIG_NOVA_NETWORK_FIXEDRANGE=192.168.32.0/22
CONFIG_NOVA_NETWORK_FLOATRANGE=10.3.4.0/22
CONFIG_NOVA_NETWORK_AUTOASSIGNFLOATINGIP=n
CONFIG_NOVA_NETWORK_VLAN_START=100
CONFIG_NOVA_NETWORK_NUMBER=1
CONFIG_NOVA_NETWORK_SIZE=255
CONFIG_NEUTRON_KS_PW=808e36e154bd4cee
CONFIG_NEUTRON_DB_PW=0e2b927a21b44737
CONFIG_NEUTRON_L3_EXT_BRIDGE=br-ex
CONFIG_NEUTRON_METADATA_PW=a965cd23ed2f4502
CONFIG_LBAAS_INSTALL=n
CONFIG_NEUTRON_METERING_AGENT_INSTALL=n
CONFIG_NEUTRON_FWAAS=n
CONFIG_NEUTRON_VPNAAS=n
CONFIG_NEUTRON_ML2_TYPE_DRIVERS=vxlan
CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES=vxlan
CONFIG_NEUTRON_ML2_MECHANISM_DRIVERS=openvswitch
CONFIG_NEUTRON_ML2_FLAT_NETWORKS=*
CONFIG_NEUTRON_ML2_VLAN_RANGES=
CONFIG_NEUTRON_ML2_TUNNEL_ID_RANGES=1001:2000
CONFIG_NEUTRON_ML2_VXLAN_GROUP=239.1.1.2
CONFIG_NEUTRON_ML2_VNI_RANGES=1001:2000
CONFIG_NEUTRON_L2_AGENT=openvswitch
CONFIG_NEUTRON_LB_INTERFACE_MAPPINGS=
CONFIG_NEUTRON_OVS_BRIDGE_MAPPINGS=physnet1:br-ex
CONFIG_NEUTRON_OVS_BRIDGE_IFACES=
CONFIG_NEUTRON_OVS_TUNNEL_IF=eth1
CONFIG_NEUTRON_OVS_VXLAN_UDP_PORT=4789
CONFIG_HORIZON_SSL=n
CONFIG_HORIZON_SECRET_KEY=a25b5ece9db24e2aba8d3a2b4d908ca5
CONFIG_HORIZON_SSL_CERT=
CONFIG_HORIZON_SSL_KEY=
CONFIG_HORIZON_SSL_CACERT=
CONFIG_SWIFT_KS_PW=8f75bfd461234c30
CONFIG_SWIFT_STORAGES=
CONFIG_SWIFT_STORAGE_ZONES=1
CONFIG_SWIFT_STORAGE_REPLICAS=1
CONFIG_SWIFT_STORAGE_FSTYPE=ext4
CONFIG_SWIFT_HASH=a60aacbedde7429a
CONFIG_SWIFT_STORAGE_SIZE=2G
CONFIG_HEAT_DB_PW=PW_PLACEHOLDER
CONFIG_HEAT_AUTH_ENC_KEY=4c078b91f2074baa
CONFIG_HEAT_KS_PW=PW_PLACEHOLDER
CONFIG_HEAT_CLOUDWATCH_INSTALL=n
CONFIG_HEAT_CFN_INSTALL=n
CONFIG_HEAT_DOMAIN=heat
CONFIG_HEAT_DOMAIN_ADMIN=heat_admin
CONFIG_HEAT_DOMAIN_PASSWORD=PW_PLACEHOLDER
CONFIG_PROVISION_DEMO=y
CONFIG_PROVISION_TEMPEST=n
CONFIG_PROVISION_DEMO_FLOATRANGE=172.24.4.224/28
CONFIG_PROVISION_IMAGE_NAME=cirros
CONFIG_PROVISION_IMAGE_URL=http://download.cirros-cloud.net/0.3.3/cirros-0.3.3-x86_64-disk.img
CONFIG_PROVISION_IMAGE_FORMAT=qcow2
CONFIG_PROVISION_IMAGE_SSH_USER=cirros
CONFIG_PROVISION_TEMPEST_USER=
CONFIG_PROVISION_TEMPEST_USER_PW=PW_PLACEHOLDER
CONFIG_PROVISION_TEMPEST_FLOATRANGE=172.24.4.224/28
CONFIG_PROVISION_TEMPEST_REPO_URI=https://github.com/openstack/tempest.git
CONFIG_PROVISION_TEMPEST_REPO_REVISION=master
CONFIG_PROVISION_OVS_BRIDGE=n
CONFIG_CEILOMETER_SECRET=19ae0e7430174349
CONFIG_CEILOMETER_KS_PW=337b08d4b3a44753
CONFIG_CEILOMETER_COORDINATION_BACKEND=redis
CONFIG_MONGODB_HOST=192.169.142.127
CONFIG_REDIS_MASTER_HOST=192.169.142.127
CONFIG_REDIS_PORT=6379
CONFIG_REDIS_HA=n
CONFIG_REDIS_SLAVE_HOSTS=
CONFIG_REDIS_SENTINEL_HOSTS=
CONFIG_REDIS_SENTINEL_CONTACT_HOST=
CONFIG_REDIS_SENTINEL_PORT=26379
CONFIG_REDIS_SENTINEL_QUORUM=2
CONFIG_REDIS_MASTER_NAME=mymaster
CONFIG_SAHARA_DB_PW=PW_PLACEHOLDER
CONFIG_SAHARA_KS_PW=PW_PLACEHOLDER
CONFIG_TROVE_DB_PW=PW_PLACEHOLDER
CONFIG_TROVE_KS_PW=PW_PLACEHOLDER
CONFIG_TROVE_NOVA_USER=trove
CONFIG_TROVE_NOVA_TENANT=services
CONFIG_TROVE_NOVA_PW=PW_PLACEHOLDER
CONFIG_NAGIOS_PW=PW_PLACEHOLDER


***********************************************************
Upon completion on Network node 192.169.142.147
***********************************************************
[root@ip-192-169-142-147 network-scripts]# cat ifcfg-br-ex
DEVICE="br-ex"
BOOTPROTO="static"
IPADDR="172.24.4.230"
NETMASK="255.255.255.240"
DNS1="83.221.202.254"
BROADCAST="172.24.4.239"
GATEWAY="172.24.4.225"
NM_CONTROLLED="no"
TYPE="OVSIntPort"
OVS_BRIDGE=br-ex
DEVICETYPE="ovs"
DEFROUTE="yes"
IPV4_FAILURE_FATAL="yes"
IPV6INIT=no

[root@ip-192-169-142-147 network-scripts]# cat ifcfg-eth2
DEVICE="eth2"
# HWADDR=00:22:15:63:E4:E2
ONBOOT="yes"
TYPE="OVSPort"
DEVICETYPE="ovs"
OVS_BRIDGE=br-ex
NM_CONTROLLED=no
IPV6INIT=no

***************************************************************
When OVS br-ex configuration is done, proceed as follows
***************************************************************
# chkconfig network on
# systemctl stop NetworkManager
# systemctl disable NetworkManager
# reboot

********************************************
Status of Storage Node upon completion
********************************************

[root@ip-192-169-142-157 ~(keystone_admin)]# openstack-status
== Glance services ==
openstack-glance-api:                   active
openstack-glance-registry:           active
== Swift services ==
openstack-swift-proxy:                  active
openstack-swift-account:              active
openstack-swift-container:            active
openstack-swift-object:                 active
== Cinder services ==
openstack-cinder-api:                   active
openstack-cinder-scheduler:        active
openstack-cinder-volume:            active
openstack-cinder-backup:            active
== Support services ==
dbus:                                   active
target:                                 active
memcached:                        active

*****************************************************************************
Next step ( device /dev/vdb 25 GB was precreated during VM setup)
Launch gparted  via EPEL 7 and create unformatted /dev/sdb1 ( 25 GB)
*****************************************************************************
# pvcreate /dev/vdb1
# vgcreate cinder-volumes51  /dev/vdb1

***********************************************************
Update /etc/cinder/cinder.conf
***********************************************************
First entry id [DEFAULT] section

################
enabled_backends=lvm51
################

At the bottom of file add

[lvm51]
iscsi_helper=lioadm
volume_group=cinder-volumes51
volume_driver=cinder.volume.drivers.lvm.LVMISCSIDriver
iscsi_ip_address=192.169.142.157
volume_backend_name=LVM_iSCSI51

**********
Then
**********

[root@ip-192-169-142-157 ~(keystone_admin)]# cinder type-create lvms
[root@ip-192-169-142-157 ~(keystone_admin)]# cinder type-key lvms set volume_backend_name=LVM_iSCSI51


Reboot VM and check /var/log/cinder/volume.log for entry


2015-11-02 13:39:09.131 5087 INFO cinder.volume.manager [req-f6ce2cdc-faad-4cf8-9999-6b8c7876bd34 - - - - -] Starting volume driver LVMISCSIDriver (3.0.0)
2015-11-02 13:39:09.136 1058 WARNING oslo_config.cfg [req-bb5acb39-d58d-4999-aea6-96a8fa414c78 - - - - -] Option "amqp_durable_queues" from group "DEFAULT" is deprecated. Use option "amqp_durable_queues" from group "oslo_messaging_rabbit".
2015-11-02 13:39:09.151 1058 WARNING oslo_config.cfg [req-bb5acb39-d58d-4999-aea6-96a8fa414c78 - - - - -] Option "lock_path" from group "DEFAULT" is deprecated. Use option "lock_path" from group "oslo_concurrency".
2015-11-02 13:39:10.032 5087 WARNING oslo_config.cfg [req-f6ce2cdc-faad-4cf8-9999-6b8c7876bd34 - - - - -] Option "amqp_durable_queues" from group "DEFAULT" is deprecated. Use option "amqp_durable_queues" from group "oslo_messaging_rabbit".
2015-11-02 13:39:10.207 5087 INFO oslo.messaging._drivers.impl_rabbit [req-f6ce2cdc-faad-4cf8-9999-6b8c7876bd34 - - - - -] Connecting to AMQP server on 192.169.142.127:5672
2015-11-02 13:39:10.217 5087 INFO oslo.messaging._drivers.impl_rabbit [req-f6ce2cdc-faad-4cf8-9999-6b8c7876bd34 - - - - -] Connected to AMQP server on 192.169.142.127:5672
2015-11-02 13:39:10.297 5087 INFO cinder.volume.manager [req-f6ce2cdc-faad-4cf8-9999-6b8c7876bd34 - - - - -] Driver initialization completed successfully.
2015-11-02 13:39:10.385 5087 INFO oslo.messaging._drivers.impl_rabbit [req-b4c3e107-d745-4d8b-9362-0b490792d699 - - - - -] Connecting to AMQP server on 192.169.142.127:5672
2015-11-02 13:39:10.394 5087 INFO oslo.messaging._drivers.impl_rabbit [req-b4c3e107-d745-4d8b-9362-0b490792d699 - - - - -] Connected to AMQP server on 192.169.142.127:5672

***********************
and make sure that
***********************

[root@ip-192-169-142-157 ~(keystone_admin)]# systemctl status target -l
target.service - Restore LIO kernel target configuration
   Loaded: loaded (/usr/lib/systemd/system/target.service; enabled)
   Active: active (exited) since Mon 2015-11-02 15:07:13 MSK; 1h 55min ago
  Process: 1006 ExecStart=/usr/bin/targetctl restore (code=exited, status=0/SUCCESS)
 Main PID: 1006 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/target.service

Nov 02 15:07:13 ip-192-169-142-157.ip.secureserver.net systemd[1]: Started Restore LIO kernel target configuration.


*******************************************
Status services on Storage Node
*******************************************

  192.169.142.157 works as LVMiSCSI Target Server. iSCSI target automatically created via cinder download glance image to mentioned volume group and launching cloud instance attached to this volume.

    

   Compute Node (iSCSI initiator  host )

*************************************************
Verfication status of running Cloud VM (L2)
*************************************************
  
 [root@ip-192-169-142-147 ~(keystone_demo)]# nova list
+--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
| ID                                   | Name       | Status | Task State | Power State | Networks                             |
+--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
| fc4ca22d-50e5-41c7-bd97-1b1c1bd1e056 | VF22Devs01 | ACTIVE | -          | Running     | demo_network=50.0.0.11, 172.24.4.228 |
+--------------------------------------+------------+--------+------------+-------------+--------------------------------------+
[root@ip-192-169-142-147 ~(keystone_demo)]# nova show fc4ca22d-50e5-41c7-bd97-1b1c1bd1e056
+--------------------------------------+----------------------------------------------------------+
| Property                             | Value                                                    |
+--------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig                    | AUTO                                                     |
| OS-EXT-AZ:availability_zone          | nova                                                     |
| OS-EXT-STS:power_state               | 1                                                        |
| OS-EXT-STS:task_state                | -                                                        |
| OS-EXT-STS:vm_state                  | active                                                   |
| OS-SRV-USG:launched_at               | 2015-11-02T11:11:39.000000                               |
| OS-SRV-USG:terminated_at             | -                                                        |
| accessIPv4                           |                                                          |
| accessIPv6                           |                                                          |
| config_drive                         |                                                          |
| created                              | 2015-11-02T11:11:30Z                                     |
| demo_network network                 | 50.0.0.11, 172.24.4.228                                  |
| flavor                               | m1.small (2)                                             |
| hostId                               | 920c0f6fd9218b6718daf508a4c1be97e2f632d8db16ea8acb008318 |
| id                                   | fc4ca22d-50e5-41c7-bd97-1b1c1bd1e056                     |
| image                                | Attempt to boot from volume - no image supplied          |
| key_name                             | oskeystor                                                |
| metadata                             | {}                                                       |
| name                                 | VF22Devs01                                               |
| os-extended-volumes:volumes_attached | [{"id": "d419e056-262e-46c9-bd04-daa28a7ac04e"}]         |
| progress                             | 0                                                        |
| security_groups                      | default                                                  |
| status                               | ACTIVE                                                   |
| tenant_id                            | 121591a2b3f24be3b462a90041e8bc40                         |
| updated                              | 2015-11-02T12:16:07Z                                     |
| user_id                              | f70cf283ded44d8a80e23df7cf4eb008                         |
+--------------------------------------+----------------------------------------------------------+

[root@ip-192-169-142-157 ~(keystone_admin)]# targetcli
targetcli shell version 2.1.fb37
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

/> ls
o- / ......................................................................................... [...]
  o- backstores .............................................................................. [...]
  | o- block .................................................................. [Storage Objects: 1]
  | | o- iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e  [/dev/cinder-volumes51/volume-d419e056-262e-46c9-bd04-daa28a7ac04e (7.0GiB) write-thru activated]
  | o- fileio ................................................................. [Storage Objects: 0]
  | o- pscsi .................................................................. [Storage Objects: 0]
  | o- ramdisk ................................................................ [Storage Objects: 0]
  o- iscsi ............................................................................ [Targets: 1]
  | o- iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e ............. [TPGs: 1]
  |   o- tpg1 .......................................................... [no-gen-acls, auth per-acl]
  |     o- acls .......................................................................... [ACLs: 1]
  |     | o- iqn.1994-05.com.redhat:d989f7dce882 ...................... [1-way auth, Mapped LUNs: 1]
  |     |   o- mapped_lun0  [lun0 block/iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e (rw)]
  |     o- luns .......................................................................... [LUNs: 1]
  |     | o- lun0  [block/iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e (/dev/cinder-volumes51/volume-d419e056-262e-46c9-bd04-daa28a7ac04e)]
  |     o- portals .................................................................... [Portals: 1]
  |       o- 192.169.142.157:3260 ............................................................. [OK]
  o- loopback ......................................................................... [Targets: 0]
/>

   Dashboard report for Storage node services status
  

  *************************
   Status on Compute
  *************************
 [root@ip-192-169-142-137 ~]#  iscsiadm -m discovery -t sendtargets -p 192.169.142.157
192.169.142.157:3260,1 iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a
192.169.142.157:3260,1 iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e

[root@ip-192-169-142-137 ~]#  iscsiadm -m session -P 3
iSCSI Transport Class version 2.0-870
version 6.2.0.873-28
Target: iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e (non-flash)
    Current Portal: 192.169.142.157:3260,1
    Persistent Portal: 192.169.142.157:3260,1
        **********
        Interface:
        **********
        Iface Name: default
        Iface Transport: tcp
        Iface Initiatorname: iqn.1994-05.com.redhat:d989f7dce882
        Iface IPaddress: 192.169.142.137
        Iface HWaddress: <empty>
        Iface Netdev: <empty>
        SID: 1
        iSCSI Connection State: LOGGED IN
        iSCSI Session State: LOGGED_IN
        Internal iscsid Session State: NO CHANGE
        *********
        Timeouts:
        *********
        Recovery Timeout: 120
        Target Reset Timeout: 30
        LUN Reset Timeout: 30
        Abort Timeout: 15
        *****
        CHAP:
        *****
        username: LAfFkqEJGQrKAv3qPDB5
        password: ********
        username_in: <empty>
        password_in: ********
        ************************
        Negotiated iSCSI params:
        ************************
        HeaderDigest: None
        DataDigest: None
        MaxRecvDataSegmentLength: 262144
        MaxXmitDataSegmentLength: 262144
        FirstBurstLength: 65536
        MaxBurstLength: 262144
        ImmediateData: Yes
        InitialR2T: Yes
        MaxOutstandingR2T: 1
        ************************
        Attached SCSI devices:
        ************************
        Host Number: 2    State: running
        scsi2 Channel 00 Id 0 Lun: 0
            Attached scsi disk sda        State: running
Target: iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a (non-flash)
    Current Portal: 192.169.142.157:3260,1
    Persistent Portal: 192.169.142.157:3260,1
        **********
        Interface:
        **********
        Iface Name: default
        Iface Transport: tcp
        Iface Initiatorname: iqn.1994-05.com.redhat:d989f7dce882
        Iface IPaddress: 192.169.142.137
        Iface HWaddress: <empty>
        Iface Netdev: <empty>
        SID: 2
        iSCSI Connection State: LOGGED IN
        iSCSI Session State: LOGGED_IN
        Internal iscsid Session State: NO CHANGE
        *********
        Timeouts:
        *********
        Recovery Timeout: 120
        Target Reset Timeout: 30
        LUN Reset Timeout: 30
        Abort Timeout: 15
        *****
        CHAP:
        *****
        username: 7KTQpMhCXhfC3SKfX3aL
        password: ********
        username_in: <empty>
        password_in: ********
        ************************
        Negotiated iSCSI params:
        ************************
        HeaderDigest: None
        DataDigest: None
        MaxRecvDataSegmentLength: 262144
        MaxXmitDataSegmentLength: 262144
        FirstBurstLength: 65536
        MaxBurstLength: 262144
        ImmediateData: Yes
        InitialR2T: Yes
        MaxOutstandingR2T: 1
        ************************
        Attached SCSI devices:
        ************************
        Host Number: 3    State: running
        scsi3 Channel 00 Id 0 Lun: 0
            Attached scsi disk sdb        State: running

***********************
Status on Storage
***********************

[root@ip-192-169-142-157 ~(keystone_admin)]# targetcli
targetcli shell version 2.1.fb37
Copyright 2011-2013 by Datera, Inc and others.
For help on commands, type 'help'.

/> ls
o- / ......................................................................................... [...]
  o- backstores .............................................................................. [...]
  | o- block .................................................................. [Storage Objects: 2]
  | | o- iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a  [/dev/cinder-volumes51/volume-9b559332-56c3-417a-958a-2c237e54865a (5.0GiB) write-thru activated]
  | | o- iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e  [/dev/cinder-volumes51/volume-d419e056-262e-46c9-bd04-daa28a7ac04e (7.0GiB) write-thru activated]
  | o- fileio ................................................................. [Storage Objects: 0]
  | o- pscsi .................................................................. [Storage Objects: 0]
  | o- ramdisk ................................................................ [Storage Objects: 0]
  o- iscsi ............................................................................ [Targets: 2]
  | o- iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a ............. [TPGs: 1]
  | | o- tpg1 .......................................................... [no-gen-acls, auth per-acl]
  | |   o- acls .......................................................................... [ACLs: 1]
  | |   | o- iqn.1994-05.com.redhat:d989f7dce882 ...................... [1-way auth, Mapped LUNs: 1]
  | |   |   o- mapped_lun0  [lun0 block/iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a (rw)]
  | |   o- luns .......................................................................... [LUNs: 1]
  | |   | o- lun0  [block/iqn.2010-10.org.openstack:volume-9b559332-56c3-417a-958a-2c237e54865a (/dev/cinder-volumes51/volume-9b559332-56c3-417a-958a-2c237e54865a)]
  | |   o- portals .................................................................... [Portals: 1]
  | |     o- 192.169.142.157:3260 ............................................................. [OK]
  | o- iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e ............. [TPGs: 1]
  |   o- tpg1 .......................................................... [no-gen-acls, auth per-acl]
  |     o- acls .......................................................................... [ACLs: 1]
  |     | o- iqn.1994-05.com.redhat:d989f7dce882 ...................... [1-way auth, Mapped LUNs: 1]
  |     |   o- mapped_lun0  [lun0 block/iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e (rw)]
  |     o- luns .......................................................................... [LUNs: 1]
  |     | o- lun0  [block/iqn.2010-10.org.openstack:volume-d419e056-262e-46c9-bd04-daa28a7ac04e (/dev/cinder-volumes51/volume-d419e056-262e-46c9-bd04-daa28a7ac04e)]
  |     o- portals .................................................................... [Portals: 1]
  |       o- 192.169.142.157:3260 ............................................................. [OK]
  o- loopback ......................................................................... [Targets: 0]
/> exit
Global pref auto_save_on_exit=true
Last 10 configs saved in /etc/target/backup.
Configuration saved to /etc/target/saveconfig.json