850 lines
20 KiB
ReStructuredText
850 lines
20 KiB
ReStructuredText
.. -*- rst -*-
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Volumes (volumes)
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=================
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A volume is a detachable block storage device similar to a USB hard
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drive. You can attach a volume to an instance, and if the volume is
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of an appropriate volume type, a volume can be attached to multiple
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instances.
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The ``snapshot_id`` and ``source_volid`` parameters specify the ID
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of the snapshot or volume from which this volume originates. If the
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volume was not created from a snapshot or source volume, these
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values are null.
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When you create, list, update, or delete volumes, the possible
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status values are:
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**Volume statuses**
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+------------------+--------------------------------------------------------+
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| Status | Description |
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+------------------+--------------------------------------------------------+
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| creating | The volume is being created. |
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+------------------+--------------------------------------------------------+
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| available | The volume is ready to attach to an instance. |
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+------------------+--------------------------------------------------------+
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| reserved | The volume is reserved for attaching or shelved. |
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+------------------+--------------------------------------------------------+
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| attaching | The volume is attaching to an instance. |
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+------------------+--------------------------------------------------------+
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| detaching | The volume is detaching from an instance. |
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+------------------+--------------------------------------------------------+
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| in-use | The volume is attached to an instance. |
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+------------------+--------------------------------------------------------+
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| maintenance | The volume is locked and being migrated. |
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+------------------+--------------------------------------------------------+
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| deleting | The volume is being deleted. |
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+------------------+--------------------------------------------------------+
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| awaiting-transfer| The volume is awaiting for transfer. |
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+------------------+--------------------------------------------------------+
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| error | A volume creation error occurred. |
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+------------------+--------------------------------------------------------+
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| error_deleting | A volume deletion error occurred. |
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+------------------+--------------------------------------------------------+
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| backing-up | The volume is being backed up. |
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+------------------+--------------------------------------------------------+
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| restoring-backup | A backup is being restored to the volume. |
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+------------------+--------------------------------------------------------+
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| error_backing-up | A backup error occurred. |
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+------------------+--------------------------------------------------------+
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| error_restoring | A backup restoration error occurred. |
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+------------------+--------------------------------------------------------+
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| error_extending | An error occurred while attempting to extend a volume. |
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+------------------+--------------------------------------------------------+
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| downloading | The volume is downloading an image. |
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+------------------+--------------------------------------------------------+
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| uploading | The volume is being uploaded to an image. |
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+------------------+--------------------------------------------------------+
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| retyping | The volume is changing type to another volume type. |
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+------------------+--------------------------------------------------------+
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| extending | The volume is being extended. |
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+------------------+--------------------------------------------------------+
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List accessible volumes with details
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.. rest_method:: GET /v3/{project_id}/volumes/detail
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Lists all Block Storage volumes, with details, that the project can access,
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since v3.31 if non-admin users specify invalid filters in the url, API will
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return bad request.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 200
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.. rest_status_code:: error ../status.yaml
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- 400
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- all_tenants: all-tenants
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- sort: sort
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- limit: limit
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- offset: offset
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- marker: marker
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- with_count: with_count
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- created_at: filter_created_at
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- updated_at: filter_updated_at
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- consumes_quota: filter_consumes_quota
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- migration_status: migration_status
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- attachments: attachments
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- links: links_vol
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- availability_zone: availability_zone
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- os-vol-host-attr:host: os-vol-host-attr:host
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- encrypted: encrypted
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- encryption_key_id: encryption_key_id
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- updated_at: updated_at
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- replication_status: replication_status
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- snapshot_id: snapshot_id
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- id: id_vol
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- size: size
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- user_id: user_id
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- os-vol-tenant-attr:tenant_id: os-vol-tenant-attr:tenant_id
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- os-vol-mig-status-attr:migstat: os-vol-mig-status-attr:migstat
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- metadata: metadata_vol_obj
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- status: status_vol
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- volume_image_metadata: volume_image_metadata
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- description: description_vol_req
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- multiattach: multiattach_resp
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- source_volid: source_volid
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- consistencygroup_id: consistencygroup_id_required
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- os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
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- name: name_vol
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- bootable: bootable_response
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- created_at: created_at
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- volumes: volumes
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- volume_type: volume_type_vol
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- volume_type_id: volume_type_id_363
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- group_id: group_id_optional
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- volumes_links: links_vol_optional
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- provider_id: provider_id
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- service_uuid: service_uuid
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- shared_targets: shared_targets
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- shared_targets: shared_targets_tristate
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- cluster_name: volume_cluster_name
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- consumes_quota: consumes_quota
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- count: count
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Response Example (v3.65)
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------------------------
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.. literalinclude:: ./samples/volumes/v3.65/volumes-list-detailed-response.json
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:language: javascript
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Create a volume
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~~~~~~~~~~~~~~~
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.. rest_method:: POST /v3/{project_id}/volumes
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Creates a volume.
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To create a bootable volume, include the UUID of the image from
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which you want to create the volume in the ``imageRef`` attribute
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in the request body.
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Since the Train release, every volume must have a volume type. It
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is **optional** to specify a volume type as part of your `Create a
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volume` request. If you do not specify one, a default volume type
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will be supplied for you. This type may vary according to what
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project you are in and how the operator has configured the Block
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Storage service. Use the `Show default volume type`_ request to
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determine your effective default volume type.
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Preconditions
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- You must have enough volume storage quota remaining to create a
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volume of size requested.
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Asynchronous Postconditions
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- With correct permissions, you can see the volume status as
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``available`` through API calls.
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- With correct access, you can see the created volume in the storage
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system that OpenStack Block Storage manages.
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Troubleshooting
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- If volume status remains ``creating`` or shows another error
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status, the request failed. Ensure you meet the preconditions
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then investigate the storage back end.
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- Volume is not created in the storage system that OpenStack Block
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Storage manages.
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- The storage node needs enough free storage space to match the size
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of the volume creation request.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 202
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- volume: volume
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- size: size
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- availability_zone: availability_zone
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- source_volid: source_volid
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- description: description_vol
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- snapshot_id: snapshot_id
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- backup_id: backup_id
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- name: volume_name_optional
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- imageRef: imageRef
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- volume_type: volume_type_detail
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- metadata: metadata_vol
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- consistencygroup_id: consistencygroup_id_required
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- OS-SCH-HNT:scheduler_hints: OS-SCH-HNT:scheduler_hints
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Request Example
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---------------
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.. literalinclude:: ./samples/volumes/volume-create-request.json
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:language: javascript
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- migration_status: migration_status
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- attachments: attachments
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- links: links_vol
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- availability_zone: availability_zone
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- encrypted: encrypted
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- updated_at: updated_at
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- replication_status: replication_status
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- snapshot_id: snapshot_id
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- id: id_vol
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- size: size
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- user_id: user_id
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- metadata: metadata_vol_obj
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- status: status_vol
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- description: description_vol_req
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- multiattach: multiattach_resp
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- source_volid: source_volid
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- volume: volume
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- consistencygroup_id: consistencygroup_id_required
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- name: name_vol
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- bootable: bootable_response
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- created_at: created_at
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- volume_type: volume_type_vol
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- volume_type_id: volume_type_id_363
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- group_id: group_id_optional
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- provider_id: provider_id
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- service_uuid: service_uuid
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- shared_targets: shared_targets
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- shared_targets: shared_targets_tristate
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- cluster_name: volume_cluster_name
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- consumes_quota: consumes_quota
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Response Example (v3.65)
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------------------------
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.. literalinclude:: ./samples/volumes/v3.65/volume-create-response.json
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:language: javascript
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List accessible volumes
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~~~~~~~~~~~~~~~~~~~~~~~
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.. rest_method:: GET /v3/{project_id}/volumes
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Lists summary information for all Block Storage volumes that the
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project can access, since v3.31 if non-admin users specify invalid
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filters in the url, API will return bad request.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 200
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.. rest_status_code:: error ../status.yaml
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- 400
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- all_tenants: all-tenants
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- sort: sort
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- limit: limit
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- offset: offset
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- marker: marker
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- with_count: with_count
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- created_at: filter_created_at
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- consumes_quota: filter_consumes_quota
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- updated_at: filter_updated_at
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- volumes: volumes
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- id: id_vol
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- links: links_vol
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- name: name_vol
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- volumes_links: links_vol_optional
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- count: count
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Response Example
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----------------
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.. literalinclude:: ./samples/volumes/volumes-list-response.json
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:language: javascript
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Show a volume's details
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~~~~~~~~~~~~~~~~~~~~~~~
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.. rest_method:: GET /v3/{project_id}/volumes/{volume_id}
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Shows details for a volume.
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Preconditions
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- The volume must exist.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 200
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- volume_id: volume_id_path
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- migration_status: migration_status
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- attachments: attachments
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- links: links_vol
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- availability_zone: availability_zone
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- os-vol-host-attr:host: os-vol-host-attr:host
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- encrypted: encrypted
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- encryption_key_id: encryption_key_id
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- updated_at: updated_at
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- replication_status: replication_status
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- snapshot_id: snapshot_id
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- id: id_vol
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- size: size
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- user_id: user_id
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- os-vol-tenant-attr:tenant_id: os-vol-tenant-attr:tenant_id
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- os-vol-mig-status-attr:migstat: os-vol-mig-status-attr:migstat
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- metadata: metadata_vol_obj
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- status: status_vol
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- volume_image_metadata: volume_image_metadata
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- description: description_vol_req
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- multiattach: multiattach_resp
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- source_volid: source_volid
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- volume: volume
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- consistencygroup_id: consistencygroup_id_required
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- os-vol-mig-status-attr:name_id: os-vol-mig-status-attr:name_id
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- name: name_vol
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- bootable: bootable_response
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- created_at: created_at
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- volume_type: volume_type_vol
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- volume_type_id: volume_type_id_363
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- service_uuid: service_uuid
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- shared_targets: shared_targets
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- shared_targets: shared_targets_tristate
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- cluster_name: volume_cluster_name
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- provider_id: provider_id
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- group_id: group_id_optional
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- consumes_quota: consumes_quota
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Response Example (v3.65)
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------------------------
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.. literalinclude:: ./samples/volumes/v3.65/volume-show-response.json
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:language: javascript
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Update a volume
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~~~~~~~~~~~~~~~
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.. rest_method:: PUT /v3/{project_id}/volumes/{volume_id}
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Updates a volume.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 200
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- volume_id: volume_id_path
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- volume: volume
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- description: description_vol
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- name: volume_name_optional
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- metadata: metadata_vol_assoc
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Request Example
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---------------
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.. literalinclude:: ./samples/volumes/volume-update-request.json
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:language: javascript
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- migration_status: migration_status
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- attachments: attachments
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- links: links_vol
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- availability_zone: availability_zone
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- encrypted: encrypted
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- updated_at: updated_at
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- replication_status: replication_status
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- snapshot_id: snapshot_id
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- id: id_vol
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- size: size
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- user_id: user_id
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- metadata: metadata_vol_obj
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- status: status_vol
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- description: description_vol_req
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- multiattach: multiattach_resp
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- source_volid: source_volid
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- volume: volume
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- consistencygroup_id: consistencygroup_id_required
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- name: name_vol
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- bootable: bootable_response
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- created_at: created_at
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- volume_type: volume_type_vol
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- volume_type_id: volume_type_id_363
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- group_id: group_id_optional
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- provider_id: provider_id
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- service_uuid: service_uuid
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- shared_targets: shared_targets
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- shared_targets: shared_targets_tristate
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- cluster_name: volume_cluster_name
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- consumes_quota: consumes_quota
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Response Example (v3.65)
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------------------------
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.. literalinclude:: ./samples/volumes/v3.65/volume-update-response.json
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:language: javascript
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Delete a volume
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~~~~~~~~~~~~~~~
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.. rest_method:: DELETE /v3/{project_id}/volumes/{volume_id}
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Deletes a volume.
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Preconditions
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- Volume status must be ``available``, ``in-use``, ``error``,
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``error_restoring``, ``error_extending``, ``error_managing``,
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and must not be ``migrating``, ``attached``, ``awaiting-transfer``,
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belong to a group, have snapshots or be disassociated from
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snapshots after volume transfer.
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- The ``cascade`` option can be passed in the request if you want
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all snapshots of this volume to be deleted automatically,
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which should allow the volume deletion to succeed.
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- You cannot delete a volume that is in a migration.
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Asynchronous Postconditions
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- The volume is deleted in volume index.
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- The volume managed by OpenStack Block Storage is deleted in
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storage node.
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Troubleshooting
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- If volume status remains in ``deleting`` or becomes
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``error_deleting`` the request failed. Ensure you meet the
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preconditions then investigate the storage back end.
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- The volume managed by OpenStack Block Storage is not deleted from
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the storage system.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 202
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- volume_id: volume_id_path
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- cascade: cascade
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- force: force_vol_del
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Create metadata for volume
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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.. rest_method:: POST /v3/{project_id}/volumes/{volume_id}/metadata
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Creates or replaces metadata for a volume. Does not modify items that are not
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in the request.
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Response codes
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--------------
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.. rest_status_code:: success ../status.yaml
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- 200
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Request
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-------
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.. rest_parameters:: parameters.yaml
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- project_id: project_id_path
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- volume_id: volume_id_path
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- metadata: metadata_vol_assoc_req
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Request Example
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---------------
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.. literalinclude:: ./samples/volumes/volume-metadata-create-request.json
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:language: javascript
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Response Parameters
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-------------------
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.. rest_parameters:: parameters.yaml
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- metadata: metadata_vol_assoc_req
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Response Example
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----------------
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.. literalinclude:: ./samples/volumes/volume-metadata-create-response.json
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:language: javascript
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Show a volume's metadata
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~~~~~~~~~~~~~~~~~~~~~~~~
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.. rest_method:: GET /v3/{project_id}/volumes/{volume_id}/metadata
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Shows metadata for a volume.
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|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- volume_id: volume_id_path
|
|
|
|
|
|
Response Parameters
|
|
-------------------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- metadata: metadata_vol_assoc_req
|
|
|
|
|
|
|
|
Response Example
|
|
----------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-show-response.json
|
|
:language: javascript
|
|
|
|
|
|
Update a volume's metadata
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
.. rest_method:: PUT /v3/{project_id}/volumes/{volume_id}/metadata
|
|
|
|
Replaces all the volume's metadata with the key-value pairs in the request.
|
|
|
|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- volume_id: volume_id_path
|
|
- metadata: metadata_vol_assoc_req
|
|
|
|
Request Example
|
|
---------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-update-request.json
|
|
:language: javascript
|
|
|
|
|
|
|
|
Response Parameters
|
|
-------------------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- metadata: metadata_vol_assoc_req
|
|
|
|
|
|
|
|
Response Example
|
|
----------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-update-response.json
|
|
:language: javascript
|
|
|
|
|
|
Show a volume's metadata for a specific key
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
.. rest_method:: GET /v3/{project_id}/volumes/{volume_id}/metadata/{key}
|
|
|
|
Shows metadata for a volume for a specific key.
|
|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- volume_id: volume_id_path
|
|
- key: key_view
|
|
|
|
|
|
Response Parameters
|
|
-------------------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- meta: meta
|
|
|
|
|
|
|
|
Response Example
|
|
----------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-show-key-response.json
|
|
:language: javascript
|
|
|
|
|
|
|
|
Delete a volume's metadata
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
.. rest_method:: DELETE /v3/{project_id}/volumes/{volume_id}/metadata/{key}
|
|
|
|
Deletes metadata for a volume.
|
|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- volume_id: volume_id_path
|
|
- key: key_path
|
|
|
|
|
|
Update a volume's metadata for a specific key
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
.. rest_method:: PUT /v3/{project_id}/volumes/{volume_id}/metadata/{key}
|
|
|
|
Update metadata for a volume for a specific key.
|
|
|
|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- volume_id: volume_id_path
|
|
- key: key_update
|
|
- meta: meta
|
|
|
|
Request Example
|
|
---------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-update-key-request.json
|
|
:language: javascript
|
|
|
|
Response Parameters
|
|
-------------------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- meta: meta
|
|
|
|
Response Example
|
|
----------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volume-metadata-update-key-response.json
|
|
:language: javascript
|
|
|
|
|
|
Get volumes summary
|
|
~~~~~~~~~~~~~~~~~~~
|
|
|
|
.. rest_method:: GET /v3/{project_id}/volumes/summary
|
|
|
|
Display volumes summary with total number of volumes and total size in GB.
|
|
Available since API microversion 3.12.
|
|
|
|
|
|
Response codes
|
|
--------------
|
|
|
|
.. rest_status_code:: success ../status.yaml
|
|
|
|
- 200
|
|
|
|
|
|
Request
|
|
-------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- project_id: project_id_path
|
|
- all_tenants: all-tenants
|
|
|
|
Response Parameters
|
|
-------------------
|
|
|
|
.. rest_parameters:: parameters.yaml
|
|
|
|
- volume-summary: volume-summary
|
|
- total_size: total_size
|
|
- total_count: total_count_int
|
|
- metadata: summary_metadata
|
|
|
|
|
|
Response Example
|
|
----------------
|
|
|
|
.. literalinclude:: ./samples/volumes/volumes-list-summary-response.json
|
|
:language: javascript
|