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