Updated on 2026-06-22 GMT+08:00

Querying Disk Usage

Function

This API is used to query the disk usage of a tenant management node.

Calling Method

For details, see Calling APIs.

URI

GET /v1/{project_id}/clusters/{cluster_id}/volume

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Definition

Project ID. To obtain the value, see Obtaining a Project ID.

Constraints

N/A

Range

N/A

Default Value

N/A

cluster_id

Yes

String

Definition

Cluster ID. For details about how to obtain the value, see Obtaining the Cluster ID.

Constraints

N/A

Range

N/A

Default Value

N/A

Request Parameters

None

Response Parameters

Status code: 200

Table 2 Response body parameters

Parameter

Type

Description

duplicate

Integer

Definition

Number of disks on a single node.

Range

N/A

disk_info_list

Array of DiskInfoResponse objects

Definition

Node capacity details.

Range

N/A

Table 3 DiskInfoResponse

Parameter

Type

Description

percentage

String

Definition

Disk usage percentage.

Range

N/A

id

String

Definition

Node ID.

Range

N/A

name

String

Definition

Node name.

Range

N/A

disk_capacity

String

Definition

Total disk capacity.

Range

N/A

disk_used

String

Definition

Used disk capacity.

Range

N/A

Example Requests

Query the disk usage.

GET https://{Endpoint}/v1/0536cdee2200d5912f7cc00b877980f1/clusters/2c14ab37-ed8f-48fa-8c23-c9e772c7fd5d/volume

Example Responses

Status code: 200

Disk information queried.

{
  "duplicate" : 2,
  "disk_info_list" : [ {
    "percentage" : "2.18",
    "id" : "7240fb6b-c8d9-43da-9177-1540117989b5",
    "name" : "dws-cluster-7-dws-cn-cn-3-1",
    "disk_capacity" : "400",
    "disk_used" : "8.74"
  }, {
    "percentage" : "2.19",
    "id" : "af4c33f3-27bd-4a07-90a4-5a0ad2f50a13",
    "name" : "dws-cluster-7-dws-cn-cn-2-1",
    "disk_capacity" : "400",
    "disk_used" : "8.78"
  }, {
    "percentage" : "2.45",
    "id" : "d197f4f7-774f-4858-b1e3-ce2319bd59bf",
    "name" : "dws-cluster-7-dws-cn-cn-1-1",
    "disk_capacity" : "400",
    "disk_used" : "9.82"
  } ]
}

SDK Sample Code

The SDK sample code is as follows.

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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.dws.v2.region.DwsRegion;
import com.huaweicloud.sdk.dws.v2.*;
import com.huaweicloud.sdk.dws.v2.model.*;


public class ShowClusterVolumeSolution {

    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);

        DwsClient client = DwsClient.newBuilder()
                .withCredential(auth)
                .withRegion(DwsRegion.valueOf("<YOUR REGION>"))
                .build();
        ShowClusterVolumeRequest request = new ShowClusterVolumeRequest();
        request.withClusterId("{cluster_id}");
        try {
            ShowClusterVolumeResponse response = client.showClusterVolume(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());
        }
    }
}
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# coding: utf-8

import os
from huaweicloudsdkcore.auth.credentials import BasicCredentials
from huaweicloudsdkdws.v2.region.dws_region import DwsRegion
from huaweicloudsdkcore.exceptions import exceptions
from huaweicloudsdkdws.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 = DwsClient.new_builder() \
        .with_credentials(credentials) \
        .with_region(DwsRegion.value_of("<YOUR REGION>")) \
        .build()

    try:
        request = ShowClusterVolumeRequest()
        request.cluster_id = "{cluster_id}"
        response = client.show_cluster_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)
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package main

import (
	"fmt"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic"
    dws "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2"
	"github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/model"
    region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/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 := dws.NewDwsClient(
        dws.DwsClientBuilder().
            WithRegion(region.ValueOf("<YOUR REGION>")).
            WithCredential(auth).
            Build())

    request := &model.ShowClusterVolumeRequest{}
	request.ClusterId = "{cluster_id}"
	response, err := client.ShowClusterVolume(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

Disk information queried.

400

Request error.

401

Authentication failed.

403

You do not have required permissions.

500

Internal server error.

503

Service unavailable.