Open Stack

Hi everyone,

I'm a total newbie with openstack, currently I'm trying to put a POC with a
Unity storage element, 4 computes, and few servers (cinder, keystone,
glance, neutron, nova, placement and horizon).

I think my keystone, glance, placement are working (at least they past the
test).

Currently I'm trying to make cinder working with my Unity (480), the
objectif are to use iSCSI.

Here the configuration of my /etc/cinder/cinder.conf

  [DEFAULT]
  rootwrap_config = /etc/cinder/rootwrap.conf
  api_paste_confg = /etc/cinder/api-paste.ini
  iscsi_helper = tgtadm
  volume_name_template = volume-%s
  volume_group = cinder-volumes
  verbose = True
  auth_strategy = keystone
  state_path = /var/lib/cinder
  lock_path = /var/lock/cinder
  volumes_dir = /var/lib/cinder/volumes
  enabled_backends = unity
  transport_url = rabbit://openstack:XXXXXX@amqp-cloud.private.FQDN/openstack
  auth_strategy = keystone
  debug = True
  verbose = True

  [database]
  connection = mysql+pymysql://cinder:XXXXXXX@mariadb-cloud.private.FQDN/cinder

  [keystone_authtoken]
  www_authenticate_uri = http://keystone.private.FQDN:5000/v3
  auth_url = http://keystone.private.FQDN:5000
  identity_uri = http://keystone.private.FQDN:5000
  memcached_servers = memcached-cloud.private.FQDN:11211
  auth_type = password
  project_domain_name = default
  user_domain_name = default
  project_name = service
  username = cinder
  password = XXXXXX

  [oslo_concurrency]
  lock_path = /var/lib/cinder/tmp

  [unity]
  # Storage protocol
  storage_protocol = iSCSI
  # Unisphere IP
  san_ip = onering-remote.FQDN
  # Unisphere username and password
  san_login = openstack
  san_password = "XXXXX"
  # Volume driver name
  volume_driver = cinder.volume.drivers.dell_emc.unity.Driver
  # backend's name
  volume_backend_name = Unitiy_ISCSI
  unity_io_ports = *_enp1s0
  unity_storage_pool_names = onering

When I'm trying to create a storage through a

    openstack volume create volumetest --type thick_volume_type --size 100

I don't even see (with tcpdump) the cinder server trying to connect to

  onering-remote.FQDN

Inside my /var/log/cinder/cinder-scheduler.log I have

  2021-04-19 18:06:56.805 21315 INFO cinder.scheduler.base_filter [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Filtering removed all hosts for the request with volume ID '06e5f07d-766f-4d07-b3bf-6153a2cf6abd'. Filter results: AvailabilityZoneFilter: (start: 0, end: 0), CapacityFilter: (start: 0, end: 0), CapabilitiesFilter: (start: 0, end: 0)
  2021-04-19 18:06:56.806 21315 WARNING cinder.scheduler.filter_scheduler [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] No weighed backend found for volume with properties: {'id': '5f16fc1f-76ff-41ee-8927-56925cf7b00f', 'name': 'thick_volume_type', 'description': None, 'is_public': True, 'projects': [], 'extra_specs': {'provisioning:type': 'thick', 'thick_provisioning_support': 'True'}, 'qos_specs_id': None, 'created_at': '2021-04-19T15:07:09.000000', 'updated_at': None, 'deleted_at': None, 'deleted': False}
  2021-04-19 18:06:56.806 21315 INFO cinder.message.api [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Creating message record for request_id = req-4808cc9d-b9c3-44cb-8cae-7503db0b0256
  2021-04-19 18:06:56.811 21315 ERROR cinder.scheduler.flows.create_volume [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid backend was found. No weighed backends available: cinder.exception.NoValidBackend: No valid backend was found. No weighed backends available


It seem (for me) cinder don't try to use unity....

Any help ?

Regards


--
Albert SHIH
Observatoire de Paris
Heure local/Local time:
Mon Apr 19 08:01:37 PM CEST 2021