Help Center/ Elastic Volume Service/ API Reference/ API/ Disk Management/ Querying Details About an EVS Disk

Updated on 2025-08-20 GMT+08:00

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Querying Details About an EVS Disk

Function

This API is used to query details about a single EVS disk. Enterprise project authorization is supported.

Calling Method

For details, see Calling APIs.

URI

GET /v2/{project_id}/cloudvolumes/{volume_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition The project ID. For details about how to obtain the project ID, see Obtaining a Project ID. Constraints N/A Range N/A Default Value N/A
volume_id	Yes	String	Definition The disk ID. You can obtain it on the disk list page of the EVS console. Constraints N/A Range N/A Default Value N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Definition The user token. You can obtain it by calling the IAM API. The value of X-Subject-Token in the response header is the user token. Constraints N/A Range N/A Default Value N/A

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
volume	VolumeDetail object	Definition The disk details. Range N/A

**Table 4** VolumeDetail
Parameter	Type	Description
id	String	Definition The disk ID. Range N/A
links	Array of Link objects	Definition The disk URI. Range N/A
name	String	Definition The disk name. Range N/A
status	String	Definition The disk status. For details, see EVS Disk Status. Range N/A
attachments	Array of Attachment objects	Definition The disk attachment information. Range N/A
availability_zone	String	Definition The AZ to which the disk belongs. Range N/A
os-vol-host-attr:host	String	Definition The reserved field. Range N/A
source_volid	String	Definition The source disk ID. This parameter has a value if the disk is created from a source disk. This field is currently not supported. Range N/A
snapshot_id	String	Definition The snapshot ID. This parameter has a value if the disk is created from a snapshot. Range N/A
description	String	Definition The disk description. Range N/A
created_at	String	Definition The time when the disk was created. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX Range N/A
os-vol-tenant-attr:tenant_id	String	Definition The ID of the tenant to which the disk belongs. The tenant ID is the same as the project ID. Range N/A
volume_image_metadata	Map<String,Object>	Definition The metadata of the disk image. For details about the volume_image_metadata field, see Querying Image Details (Native OpenStack API). Range N/A
volume_type	String	Definition The disk type. Range The value can be SATA, SAS, GPSSD, SSD, ESSD, GPSSD2, or ESSD2. SATA: the common I/O type (sold out) SAS: the high I/O type GPSSD: the general purpose SSD type SSD: the ultra-high I/O type ESSD: the extreme SSD type GPSSD2: the general purpose SSD V2 type ESSD2: the extreme SSD V2 type
size	Integer	Definition The disk capacity, in GiB. Range N/A
consistencygroup_id	String	Definition The reserved field. Range N/A
bootable	String	Definition Whether the disk is bootable. Range true: The disk is bootable. false: The disk is not bootable.
metadata	Map<String,Object>	Definition The disk metadata information. Callers can add or remove the metadata information. Range The keys of this parameter used in EVS are described as follows: __system__cmkid 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. For details about how to obtain the key ID, see Querying the Key List. __system__encrypted The encryption field in metadata. The value can be 0 (no encryption) or 1 (encryption). If this parameter is not specified, the encryption attribute of the disk is the same as that of the data source. If the disk is not created from a data source, the disk is not encrypted by default. hw:passthrough If this parameter value is 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 value is false, the disk device type is VBD (default device type), which supports only simple SCSI read/write commands. If this parameter is not specified, the disk device type is VBD. orderID The parameter that describes the disk billing mode in metadata. If this parameter has a value, the disk is billed on a yearly/monthly basis. If this parameter is not specified, the disk is billed on a pay-per-use basis.
updated_at	String	Definition The time when the disk was updated. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX Range N/A
encrypted	Boolean	Definition This field is currently not supported. Range N/A
replication_status	String	Definition The reserved field. Range N/A
os-volume-replication:extended_status	String	Definition The reserved field. Range N/A
os-vol-mig-status-attr:migstat	String	Definition The reserved field. Range N/A
os-vol-mig-status-attr:name_id	String	Definition The reserved field. Range N/A
shareable	String	Definition Whether the disk is shareable. The value can be true (shareable) or false (non-shareable). This field has been deprecated. Use multiattach. Range N/A
user_id	String	Definition The reserved field. Range N/A
service_type	String	Definition The service type. Range EVS, DSS, or DESS
multiattach	Boolean	Definition Whether the disk is shareable. Range N/A
dedicated_storage_id	String	Definition The ID of the dedicated storage pool housing the disk. Range N/A
dedicated_storage_name	String	Definition The name of the dedicated storage pool housing the disk. Range N/A
tags	Map<String,String>	Definition The disk tags. This field has values if the disk has tags. Or, it is left empty. Range N/A
wwn	String	Definition The unique identifier used when attaching the disk. Range N/A
enterprise_project_id	String	Definition The ID of the enterprise project that the disk has been added to. For more information about enterprise projects and how to obtain enterprise project IDs, see Enterprise Management User Guide. Range N/A
serial_number	String	Definition The disk serial number. This field is only returned for non-HyperMetro SCSI disks and is used for disk mapping in the VM. Range N/A
iops	iops object	Definition The disk IOPS information. This parameter only appears for general purpose SSD V2 or extreme SSD V2 disks. Range N/A
throughput	throughput object	Definition The disk throughput information. This parameter only appears for general purpose SSD V2 disks. Range N/A

**Table 5** Link
Parameter	Type	Description
href	String	Definition The corresponding shortcut link. Range N/A
rel	String	Definition The shortcut link marker name. Range N/A

**Table 6** Attachment
Parameter	Type	Description
attached_at	String	Definition The time when the disk was attached. Time format: UTC YYYY-MM-DDTHH:MM:SS.XXXXXX Range N/A
attachment_id	String	Definition The attachment ID. Range N/A
device	String	Definition The device name. Range N/A
host_name	String	Definition The name of the physical host housing the cloud server to which the disk is attached. Range N/A
id	String	Definition The ID of the attached disk. Range N/A
server_id	String	Definition The ID of the server to which the disk is attached. Range N/A
volume_id	String	Definition The disk ID. Range N/A

**Table 7** iops
Parameter	Type	Description
frozened	Boolean	Definition The frozen tag. Range N/A
id	String	Definition The ID of the disk IOPS. Range N/A
total_val	Integer	Definition The IOPS. Range N/A

**Table 8** throughput
Parameter	Type	Description
frozened	Boolean	Definition The frozen tag. Range N/A
id	String	Definition The throughput ID. Range N/A
total_val	Integer	Definition The throughput. Range N/A

Status code: 400

**Table 9** Response body parameters
Parameter	Type	Description
error	Error object	Definition The error code returned if an error occurs. For the error codes and their meanings, see Error Codes. Range N/A

**Table 10** Error
Parameter	Type	Description
code	String	Definition The error code returned if an error occurs. Range For the error codes and their meanings, see Error Codes.
message	String	Definition The error message returned if an error occurs. Range N/A

Example Requests

GET https://{endpoint}/v2/{project_id}/cloudvolumes/{volume_id}

Example Responses

Status code: 200

The disk information is returned.

{
  "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",
    "multiattach" : true,
    "updated_at" : "2016-02-03T02:19:29.895237",
    "replication_status" : "disabled",
    "id" : "591ac654-26d8-41be-bb77-4f90699d2d41",
    "size" : 40,
    "user_id" : "fd03ee73295e45478d88e15263d2ee4e",
    "os-vol-tenant-attr:tenant_id" : "40acc331ac784f34842ba4f08ff2be48",
    "metadata" : { },
    "tags" : {
      "key1" : "value1",
      "key2" : "value2"
    },
    "status" : "available",
    "description" : "auto-created_from_restore_from_backup",
    "name" : "restore_backup_0115efb3-678c-4a9e-bff6-d3cd278238b9",
    "bootable" : "false",
    "created_at" : "2016-02-03T02:19:11.723797",
    "service_type" : "EVS",
    "wwn" : " 688860300000d136fa16f48f05992360"
  }
}

Status code: 400

Bad Request

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

SDK Sample Code

The SDK sample code is as follows.

Java

    
     
       
       
         package com.huaweicloud.sdk.test;

import com.huaweicloud.sdk.core.auth.ICredential;
import com.huaweicloud.sdk.core.auth.BasicCredentials;
import com.huaweicloud.sdk.core.exception.ConnectionException;
import com.huaweicloud.sdk.core.exception.RequestTimeoutException;
import com.huaweicloud.sdk.core.exception.ServiceResponseException;
import com.huaweicloud.sdk.evs.v2.region.EvsRegion;
import com.huaweicloud.sdk.evs.v2.*;
import com.huaweicloud.sdk.evs.v2.model.*;


public class ShowVolumeSolution {

    public static void main(String[] args) {
        // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
        // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
        String ak = System.getenv("CLOUD_SDK_AK");
        String sk = System.getenv("CLOUD_SDK_SK");
        String projectId = "{project_id}";

        ICredential auth = new BasicCredentials()
                .withProjectId(projectId)
                .withAk(ak)
                .withSk(sk);

        EvsClient client = EvsClient.newBuilder()
                .withCredential(auth)
                .withRegion(EvsRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowVolumeRequest request = new ShowVolumeRequest();
        request.withVolumeId("{volume_id}");
        try {
            ShowVolumeResponse response = client.showVolume(request);
            System.out.println(response.toString());
        } catch (ConnectionException e) {
            e.printStackTrace();
        } catch (RequestTimeoutException e) {
            e.printStackTrace();
        } catch (ServiceResponseException e) {
            e.printStackTrace();
            System.out.println(e.getHttpStatusCode());
            System.out.println(e.getRequestId());
            System.out.println(e.getErrorCode());
            System.out.println(e.getErrorMsg());
        }
    }
}

        

      

    
   

Python

    
     
       
       
         # coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkevs.v2.region.evs_region import EvsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkevs.v2 import *

if __name__ == "__main__":
    # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak = os.environ["CLOUD_SDK_AK"]
    sk = os.environ["CLOUD_SDK_SK"]
    projectId = "{project_id}"

    credentials = BasicCredentials(ak, sk, projectId)

    client = EvsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(EvsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowVolumeRequest()
        request.volume_id = "{volume_id}"
        response = client.show_volume(request)
        print(response)
    except exceptions.ClientRequestException as e:
        print(e.status_code)
        print(e.request_id)
        print(e.error_code)
        print(e.error_msg)

        

      

    
   

Go

    
     
       
       
         package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    evs "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/evs/v2/region"
)

func main() {
    // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security.
    // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment
    ak := os.Getenv("CLOUD_SDK_AK")
    sk := os.Getenv("CLOUD_SDK_SK")
    projectId := "{project_id}"

    auth := basic.NewCredentialsBuilder().
        WithAk(ak).
        WithSk(sk).
        WithProjectId(projectId).
        Build()

    client := evs.NewEvsClient(
        evs.EvsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ShowVolumeRequest{}
	request.VolumeId = "{volume_id}"
	response, err := client.ShowVolume(request)
	if err == nil {
        fmt.Printf("%+v\n", response)
    } else {
        fmt.Println(err)
    }
}

        

      

    
   

For SDK sample code of more programming languages, see the Sample Code tab in API Explorer. SDK sample code can be automatically generated.

Status Codes

Status Code	Description
200	The disk information is returned.
400	Bad Request

Error Codes

See Error Codes.

Parent topic: Disk Management

Previous topic: Expanding Capacities of Multiple Disks in a Batch

Next topic: Unsubscribing from Yearly/Monthly EVS Disks

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