Updated on 2022-11-02 GMT+08:00

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.