Openstack cinder : add a volume(block storage) to an instance

Here are logs when adding a block storage to an instance.

Two instances are running.

There are not volumes.

[root@controller ~]# source keystonerc_user01 [root@controller ~(keystone_user01)]# openstack server list +--------------------------------------+-------------------+--------+----------------------------------------+ | ID                                   | Name              | Status | Networks                               | +--------------------------------------+-------------------+--------+----------------------------------------+ | c98521fc-cf0a-4dc1-ac89-4f88bb5d80c8 | second-instance   | ACTIVE | internal=192.168.37.4, 192.168.131.133 | | 76dbd219-4e69-461e-9404-26270e9b4cd8 | my-first-instance | ACTIVE | internal=192.168.37.3, 192.168.131.132 | +--------------------------------------+-------------------+--------+----------------------------------------+ [root@controller ~(keystone_user01)]# [root@controller ~(keystone_user01)]# openstack volume list [root@controller ~(keystone_user01)]#

create a volume.

+---------------------+--------------------------------------+ | Field               | Value                                | +---------------------+--------------------------------------+ | attachments         | []                                   | | availability_zone   | nova                                 | | bootable            | false                                | | consistencygroup_id | None                                 | | created_at          | 2016-09-23T08:01:18.004295           | | description         | None                                 | | encrypted           | False                                | | id                  | b984d9a4-6d28-42ec-9ccc-84e6a868838d | | multiattach         | False                                | | name                | data_vol1                            | | properties          |                                      | | replication_status  | disabled                             | | size                | 1                                    | | snapshot_id         | None                                 | | source_volid        | None                                 | | status              | creating                             | | type                | None                                 | | updated_at          | None                                 | | user_id             | 1951635b07c24d3eb7de05fb8f2697cf     | +---------------------+--------------------------------------+ [root@controller ~(keystone_user01)]# [root@controller ~(keystone_user01)]# openstack volume list +--------------------------------------+--------------+-----------+------+-------------+ | ID                                   | Display Name | Status    | Size | Attached to | +--------------------------------------+--------------+-----------+------+-------------+ | b984d9a4-6d28-42ec-9ccc-84e6a868838d | data_vol1    | available |    1 |             | +--------------------------------------+--------------+-----------+------+-------------+ [root@controller ~(keystone_user01)]#

Attach this volume to the instance.

(openstack) server list +--------------------------------------+-------------------+--------+----------------------------------------+ | ID                                   | Name              | Status | Networks                               | +--------------------------------------+-------------------+--------+----------------------------------------+ | c98521fc-cf0a-4dc1-ac89-4f88bb5d80c8 | second-instance   | ACTIVE | internal=192.168.37.4, 192.168.131.133 | | 76dbd219-4e69-461e-9404-26270e9b4cd8 | my-first-instance | ACTIVE | internal=192.168.37.3, 192.168.131.132 | +--------------------------------------+-------------------+--------+----------------------------------------+ (openstack) volume list +--------------------------------------+--------------+-----------+------+-------------+ | ID                                   | Display Name | Status    | Size | Attached to | +--------------------------------------+--------------+-----------+------+-------------+ | b984d9a4-6d28-42ec-9ccc-84e6a868838d | data_vol1    | available |    1 |             | +--------------------------------------+--------------+-----------+------+-------------+ (openstack) server add volume 76dbd219-4e69-461e-9404-26270e9b4cd8 b984d9a4-6d28-42ec-9ccc-84e6a868838d (openstack) (openstack) server show 76dbd219-4e69-461e-9404-26270e9b4cd8 +--------------------------------------+----------------------------------------------------------+ | Field                                | Value                                                    | +--------------------------------------+----------------------------------------------------------+ | OS-DCF:diskConfig                    | MANUAL                                                   | | OS-EXT-AZ:availability_zone          | nova                                                     | | OS-EXT-STS:power_state               | 1                                                        | | OS-EXT-STS:task_state                | None                                                     | | OS-EXT-STS:vm_state                  | active                                                   | | OS-SRV-USG:launched_at               | 2016-09-14T06:36:40.000000                               | | OS-SRV-USG:terminated_at             | None                                                     | | accessIPv4                           |                                                          | | accessIPv6                           |                                                          | | addresses                            | internal=192.168.37.3, 192.168.131.132                   | | config_drive                         |                                                          | | created                              | 2016-09-14T06:36:31Z                                     | | flavor                               | m1.tiny (1)                                              | | hostId                               | d34eb8dc4d730fcc217d98d3685b0f9b8aeafc0deaa8bf8261d37cae | | id                                   | 76dbd219-4e69-461e-9404-26270e9b4cd8                     | | image                                | cirros (0787f9f4-4ab1-4b3b-b186-de167642051f)            | | key_name                             | user01_keypair                                           | | name                                 | my-first-instance                                        | | os-extended-volumes:volumes_attached | [{u'id': u'b984d9a4-6d28-42ec-9ccc-84e6a868838d'}]       | | progress                             | 0                                                        | | project_id                           | 605f675c6d1a40cd9563adf3a75d4492                         | | properties                           |                                                          | | security_groups                      | [{u'name': u'default'}]                                  | | status                               | ACTIVE                                                   | | updated                              | 2016-09-14T06:36:41Z                                     | | user_id                              | 1951635b07c24d3eb7de05fb8f2697cf                         | +--------------------------------------+----------------------------------------------------------+ (openstack) (openstack) volume list +--------------------------------------+--------------+--------+------+--------------------------------------------+ | ID                                   | Display Name | Status | Size | Attached to                                | +--------------------------------------+--------------+--------+------+--------------------------------------------+ | b984d9a4-6d28-42ec-9ccc-84e6a868838d | data_vol1    | in-use |    1 | Attached to my-first-instance on /dev/vdb  | +--------------------------------------+--------------+--------+------+--------------------------------------------+ (openstack)

access to the instance

vdb was added

$ ls /dev/vd* /dev/vda   /dev/vda1  /dev/vdb $

remove a volume

(openstack) server remove volume 76dbd219-4e69-461e-9404-26270e9b4cd8 b984d9a4-6d28-42ec-9ccc-84e6a868838d (openstack)

on the instance.

$ ls /dev/vd* /dev/vda   /dev/vda1 $