Volume fails to detach

Issue

• nova volume-detach <server> <volume> returns with an error of volume is already detached.

• nova volume-attach <server> <volume> <device> returns with /dev/vdb is already in use.

[root@lpdcldiuctl01 ~(openstack_admin)]# nova volume-detach e5b63834-a805-4ccc-a6be-0f1e24917b2f c25bb63e-50d0-4a48-8895-4c599a50caae
ERROR: Invalid volume: already detached (HTTP 400) (Request-ID: req-80a1b333-6c6b-43d6-988a-35f11366074b)
[root@lpdcldiuctl01 ~(openstack_admin)]# nova volume-attach e5b63834-a805-4ccc-a6be-0f1e24917b2f c25bb63e-50d0-4a48-8895-4c599a50caae /dev/vdb
ERROR: The supplied device path (/dev/vdb) is in use. (HTTP 409) (Request-ID: req-8711ea85-5115-467f-8304-0fd65afb21cc)

• The instance shows both volumes attached and the the volume itself shows as attached

+------------------+------------------------------------+----------+----------+-------+----------------------------+-----------------+
[root@lpdcldiuctl01 ~(openstack_admin)]# nova show LPQCLDUT00143
+--------------------------------------+--------------------------------------------------------------------------------------------------+
| Property                             | Value                                                                                            |
+--------------------------------------+--------------------------------------------------------------------------------------------------+
| OS-DCF:diskConfig                    | MANUAL                                                                                           |
| OS-EXT-AZ:availability_zone          | nova                                                                                             |
| OS-EXT-SRV-ATTR:host                 | host.example.com                                                             |
| OS-EXT-SRV-ATTR:hypervisor_hostname  | host.example.com                                                               |
| OS-EXT-SRV-ATTR:instance_name        | instance-0001221c                                                                                |
| OS-EXT-STS:power_state               | 4                                                                                                |
| OS-EXT-STS:task_state                | -                                                                                                |
| OS-EXT-STS:vm_state                  | stopped                                                                                          |
| OS-SRV-USG:launched_at               | 2015-04-08T17:44:06.000000                                                                       |
| OS-SRV-USG:terminated_at             | -                                                                                                |
| accessIPv4                           |                                                                                                  |
| accessIPv6                           |                                                                                                  |
| config_drive                         |                                                                                                  |
| created                              | 2015-04-08T17:44:03Z                                                                             |
| flavor                               | 4x16 (f75330bf-2f26-4728-9ef4-eaf8508e9d24)                                                      |
| hostId                               | 4d441537facae8ead7fc51eecb3d3b8743b9a040df7bc3e03d3ab4c2                                         |
| id                                   | e5b63834-a805-4ccc-a6be-0f1e24917b2f                                                             |
| image                                | Attempt to boot from volume - no image supplied                                                  |
| key_name                             | -                                                                                                |
| metadata                             | {}                                                                                               |
| name                                 | LPQCLDUT00143                                                                                    |
| os-extended-volumes:volumes_attached | [{"id": "e2546451-2c05-43c5-aeb5-3fa5ed791a9c"}, {"id": "c25bb63e-50d0-4a48-8895-4c599a50caae"}] |
| qa_app_2202_intranet_ipc1_1 network  | 10.16.141.185                                                                                    |
| security_groups                      | default                                                                                          |
| status                               | SHUTOFF                                                                                          |
| tenant_id                            | e07cc4ae77dc4ac48ffffbbede98dbe7                                                                 |
| updated                              | 2015-06-15T21:46:30Z                                                                             |
| user_id                              | b69398f579d64121b057c36764b3d315                                                                 |
+--------------------------------------+--------------------------------------------------------------------------------------------------+


[root@lpdcldiuctl01 ~(openstack_admin)]# cinder show c25bb63e-50d0-4a48-8895-4c599a50caae
+--------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|            Property            |                                                                                                    Value                                                                                                     |
+--------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|          attachments           | [{u'device': u'/dev/vdb', u'server_id': u'e5b63834-a805-4ccc-a6be-0f1e24917b2f', u'id': u'c25bb63e-50d0-4a48-8895-4c599a50caae', u'host_name': None, u'volume_id': u'c25bb63e-50d0-4a48-8895-4c599a50caae'}] |
|       availability_zone        |                                                                                                     nova                                                                                                     |
|            bootable            |                                                                                                    false                                                                                                     |
|           created_at           |                                                                                          2015-04-08T17:41:44.000000                                                                                          |
|      display_description       |                                                                                                     None                                                                                                     |
|          display_name          |                                                                                                LPQCLDUT00143                                                                                                 |
|           encrypted            |                                                                                                    False                                                                                                     |
|               id               |                                                                                     c25bb63e-50d0-4a48-8895-4c599a50caae                                                                                     |
|            metadata            |                                                           {u'readonly': u'False', u'backup': u'DAILY_SNAPSHOT_MIGRATION', u'attached_mode': u'rw'}                                                           |
|     os-vol-host-attr:host      |                                                                                        ha-controller@backend_netapp1                                                                                         |
| os-vol-mig-status-attr:migstat |                                                                                                     None                                                                                                     |
| os-vol-mig-status-attr:name_id |                                                                                                     None                                                                                                     |
|  os-vol-tenant-attr:tenant_id  |                                                                                       e07cc4ae77dc4ac48ffffbbede98dbe7                                                                                       |
|              size              |                                                                                                      50                                                                                                      |
|          snapshot_id           |                                                                                                     None                                                                                                     |
|          source_volid          |                                                                                                     None                                                                                                     |
|             status             |                                                                                                  available                                                                                                   |
|          volume_type           |                                                                                                     None                                                                                                     |
+--------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+