Querying Details About a Disk

Function

This API is used to query details about a disk.

URI

• URI format

  GET /v2/{project_id}/volumes/{volume_id}

• Parameter description

  Parameter	Mandatory	Description
  project_id	Yes	The project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
  volume_id	Yes	The disk ID.

Request

• Example request

  GET https://{endpoint}/v2/{project_id}/volumes/b104b8db-170d-441b-897a-3c8ba9c5a214

Response

• Response parameters

  Parameter	Type	Description
  volume	Object	The queried disk. For details, see Parameters in the volume field.
  error	Object	The error message returned if an error occurs. For details, see Parameters in the error field.

• Parameters in the volume field

  Parameter	Type	Description
  id	String	The disk ID.
  links	list<map<String, String>>	The disk URI. For details, see Parameters in the links field.
  name	String	The disk name.
  status	String	The disk status. For details, see EVS Disk Status.
  attachments	list<map<String, String>>	The disk attachment information. For details, see Parameters in the attachments field.
  availability_zone	String	The AZ to which the disk belongs.
  source_volid	String	The source disk ID. This parameter has a value if the disk is created from a source disk. This field is currently not supported.
  snapshot_id	String	The snapshot ID. This parameter has a value if the disk is created from a snapshot.
  description	String	The disk description.
  os-vol-tenant-attr:tenant_id	String	The ID of the tenant to which the disk belongs. The tenant ID is the same as the project ID.
  volume_image_metadata	Object	The metadata of the disk image. NOTE: For details about volume_image_metadata, see Querying Image Details (Native OpenStack API).
  created_at	String	The time when the disk was created. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX
  volume_type	String	The disk type. The value can be SSD, GPSSD, or SAS. SSD: the ultra-high I/O type GPSSD: the general purpose SSD type SAS: the high I/O type
  size	Integer	The disk size, in GB.
  bootable	String	Whether the disk is bootable. true: indicates a bootable disk. false: indicates a non-bootable disk.
  metadata	Object	The disk metadata. For details, see Parameters in the metadata field.
  os-vol-host-attr:host	String	The reserved field.
  encrypted	Boolean	This field is currently not supported.
  updated_at	String	The time when the disk was updated. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX
  os-volume-replication:extended_status	String	The reserved field.
  replication_status	String	The reserved field.
  os-vol-mig-status-attr:migstat	String	The reserved field.
  consistencygroup_id	String	The reserved field.
  os-vol-mig-status-attr:name_id	String	The reserved field.
  shareable	Boolean	Whether the disk is shareable. NOTE: This field is no longer used. Use multiattach.
  user_id	String	The reserved field.
  multiattach	Boolean	Whether the disk is shareable. true: indicates a shared disk. false: indicates a non-shared disk.
  storage_cluster_id	String	The reserved field.

• Parameters in the links field

  Parameter	Type	Description
  href	String	The corresponding shortcut link.
  rel	String	The shortcut link marker name.

• Parameters in the attachments field

  Parameter	Type	Description
  server_id	String	The ID of the server to which the disk is attached.
  attachment_id	String	The ID of the attachment information.
  attached_at	String	The time when the disk was attached.
  host_name	String	The name of the physical host housing the cloud server to which the disk is attached.
  volume_id	String	The disk ID.
  device	String	The device name.
  id	String	The ID of the attached disk.

• Parameters in the metadata field

  Parameter	Type	Description
  __system__encrypted	String	Specifies the parameter that describes the encryption function in metadata. The value can be 0 or 1. 0: indicates the disk is not encrypted. 1: indicates the disk is encrypted. If this parameter does not appear, the disk is not encrypted by default.
  __system__cmkid	String	Specifies the encryption CMK ID in metadata. This parameter is used together with __system__encrypted for encryption. The length of cmkid is fixed at 36 bytes.
  hw:passthrough	String	Specifies the parameter that describes the disk device type in metadata. The value can be true or false. If this parameter is set to true, the disk device type is SCSI, which allows ECS OSs to directly access the underlying storage media and supports SCSI reservation commands. If this parameter is set to false, the disk device type is VBD (the default type), that is, Virtual Block Device (VBD), which supports only simple SCSI read/write commands. If this parameter does not appear, the disk device type is VBD.
  full_clone	String	Specifies the clone method. When the disk is created from a snapshot, the parameter value is 0, indicating the linked cloning method.
  orderID	String	Specifies the parameter that describes the disk billing mode in metadata.

• Parameters in the error field

  Parameter	Type	Description
  message	String	The error message returned if an error occurs.
  code	String	The error code returned if an error occurs. For details about the error code, see Error Codes.

• Example response

  {
      "volume": {
          "attachments": [ ], 
          "links": [
              {
                  "href": "https://volume.az0.dc1.domainname.com/v2/40acc331ac784f34842ba4f08ff2be48/volumes/591ac654-26d8-41be-bb77-4f90699d2d41", 
                  "rel": "self"
              }, 
              {
                  "href": "https://volume.az0.dc1.domainname.com/40acc331ac784f34842ba4f08ff2be48/volumes/591ac654-26d8-41be-bb77-4f90699d2d41", 
                  "rel": "bookmark"
              }
          ], 
          "availability_zone": "az-dc-1", 
          "os-vol-host-attr:host": "az-dc-1#SSD", 
          "encrypted": false, 
          "multiattach": true, 
          "updated_at": "2016-02-03T02:19:29.895237", 
          "os-volume-replication:extended_status": null, 
          "replication_status": "disabled", 
          "snapshot_id": null, 
          "id": "591ac654-26d8-41be-bb77-4f90699d2d41", 
          "size": 40, 
          "user_id": "fd03ee73295e45478d88e15263d2ee4e", 
          "os-vol-tenant-attr:tenant_id": "40acc331ac784f34842ba4f08ff2be48", 
          "volume_image_metadata": null, 
          "os-vol-mig-status-attr:migstat": null, 
          "metadata": {}, 
          "status": "error_restoring", 
          "description": "auto-created_from_restore_from_backup", 
          "source_volid": null, 
          "consistencygroup_id": null, 
          "os-vol-mig-status-attr:name_id": null, 
          "name": "restore_backup_0115efb3-678c-4a9e-bff6-d3cd278238b9", 
          "bootable": "false", 
          "created_at": "2016-02-03T02:19:11.723797", 
          "volume_type": null
      }
  }

  or

  {
      "error": {
          "message": "XXXX", 
          "code": "XXX"
      }
  }

  In the preceding example, error indicates a general error, for example, badrequest or itemNotFound. An example is provided as follows:

  {
      "badrequest": {
          "message": "XXXX", 
          "code": "XXX"
      }
  }

Status Codes

• Normal

  200

Error Codes

For details, see Error Codes.