Manage and unmanage share

Manage and unmanage share

To manage a share means that an administrator, rather than a share driver, manages the storage lifecycle. This approach is appropriate when an administrator already has the custom non-manila share with its size, shared file system protocol, and export path, and an administrator wants to register it in the Shared File System service.

To unmanage a share means to unregister a specified share from the Shared File Systems service. Administrators can revert an unmanaged share to managed status if needed.

Unmanage a share

The unmanage operation is not supported for shares that were created on top of share servers and created with share networks. The Share service should have the option driver_handles_share_servers = False set in the manila.conf file. You can unmanage a share that has no dependent snapshots.

To unmanage managed share, run the manila unmanage <share> command. Then try to print the information about the share. The returned result should indicate that Shared File Systems service won’t find the share:

$ manila unmanage share_for_docs
$ manila show share_for_docs
ERROR: No share with a name or ID of 'share_for_docs' exists.

Manage a share

To register the non-managed share in the File System service, run the manila manage command:

manila manage [--name <name>] [--description <description>]
              [--share_type <share-type>]
              [--driver_options [<key=value> [<key=value> ...]]]
              <service_host> <protocol> <export_path>

The positional arguments are:

  • service_host. The manage-share service host in host@backend#POOL format, which consists of the host name for the back end, the name of the back end, and the pool name for the back end.
  • protocol. The Shared File Systems protocol of the share to manage. Valid values are NFS, CIFS, GlusterFS, or HDFS.
  • export_path. The share export path in the format appropriate for the protocol:
    • NFS protocol. 10.0.0.1:/foo_path.
    • CIFS protocol. \\10.0.0.1\foo_name_of_cifs_share.
    • HDFS protocol. hdfs://10.0.0.1:foo_port/foo_share_name.
    • GlusterFS. 10.0.0.1:/foo_volume.

The driver_options is an optional set of one or more key and value pairs that describe driver options. Note that the share type must have the driver_handles_share_servers = False option. As a result, a special share type named for_managing was used in example.

To manage share, run:

$ manila manage \
    manila@paris#shares \
    nfs \
    1.0.0.4:/shares/manila_share_6d2142d8_2b9b_4405_867f_8a48094c893f \
    --name share_for_docs \
    --description "We manage share." \
    --share_type for_managing
+-----------------------------+--------------------------------------+
| Property                    | Value                                |
+-----------------------------+--------------------------------------+
| status                      | manage_starting                      |
| share_type_name             | for_managing                         |
| description                 | We manage share.                     |
| availability_zone           | None                                 |
| share_network_id            | None                                 |
| share_server_id             | None                                 |
| host                        | manila@paris#shares                  |
| access_rules_status         | active                               |
| snapshot_id                 | None                                 |
| is_public                   | False                                |
| task_state                  | None                                 |
| snapshot_support            | True                                 |
| id                          | ddfb1240-ed5e-4071-a031-b842035a834a |
| size                        | None                                 |
| name                        | share_for_docs                       |
| share_type                  | 14ee8575-aac2-44af-8392-d9c9d344f392 |
| has_replicas                | False                                |
| replication_type            | None                                 |
| created_at                  | 2016-03-25T15:22:43.000000           |
| share_proto                 | NFS                                  |
| consistency_group_id        | None                                 |
| source_cgsnapshot_member_id | None                                 |
| project_id                  | 907004508ef4447397ce6741a8f037c1     |
| metadata                    | {}                                   |
+-----------------------------+--------------------------------------+

Check that the share is available:

$ manila show share_for_docs
+----------------------+--------------------------------------------------------------------------+
| Property             | Value                                                                    |
+----------------------+--------------------------------------------------------------------------+
| status               | available                                                                |
| share_type_name      | for_managing                                                             |
| description          | We manage share.                                                         |
| availability_zone    | None                                                                     |
| share_network_id     | None                                                                     |
| export_locations     |                                                                          |
|                      | path = 1.0.0.4:/shares/manila_share_6d2142d8_2b9b_4405_867f_8a48094c893f |
|                      | preferred = False                                                        |
|                      | is_admin_only = False                                                    |
|                      | id = d4d048bf-4159-4a94-8027-e567192b8d30                                |
|                      | share_instance_id = 4c8e3887-4f9a-4775-bab4-e5840a09c34e                 |
|                      | path = 2.0.0.3:/shares/manila_share_6d2142d8_2b9b_4405_867f_8a48094c893f |
|                      | preferred = False                                                        |
|                      | is_admin_only = True                                                     |
|                      | id = 1dd4f0a3-778d-486a-a851-b522f6e7cf5f                                |
|                      | share_instance_id = 4c8e3887-4f9a-4775-bab4-e5840a09c34e                 |
| share_server_id      | None                                                                     |
| host                 | manila@paris#shares                                                      |
| access_rules_status  | active                                                                   |
| snapshot_id          | None                                                                     |
| is_public            | False                                                                    |
| task_state           | None                                                                     |
| snapshot_support     | True                                                                     |
| id                   | ddfb1240-ed5e-4071-a031-b842035a834a                                     |
| size                 | 1                                                                        |
| name                 | share_for_docs                                                           |
| share_type           | 14ee8575-aac2-44af-8392-d9c9d344f392                                     |
| has_replicas         | False                                                                    |
| replication_type     | None                                                                     |
| created_at           | 2016-03-25T15:22:43.000000                                               |
| share_proto          | NFS                                                                      |
| consistency_group_id | None                                                                     |
| project_id           | 907004508ef4447397ce6741a8f037c1                                         |
| metadata             | {}                                                                       |
+----------------------+--------------------------------------------------------------------------+
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