文档首页> 弹性云服务器 ECS> API参考> 应用示例> 弹性云服务器挂载磁盘
更新时间:2023-12-01 GMT+08:00
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弹性云服务器挂载磁盘

场景描述

弹性云服务器创建成功后,如果发现磁盘不够用或当前磁盘不满足要求,可以将已有磁盘挂载给弹性云服务器,或调用创建云硬盘的接口创建新的磁盘,然后再挂载至弹性云服务器。挂载操作需要调用挂载云硬盘接口。

您可以在创建云服务器时,通过设置“data_volumes”参数值挂载数据盘,也可以在创建云服务器成功后挂载数据盘。本节主要介绍云服务器创建成功后挂载磁盘的场景。

操作步骤

  1. 创建云硬盘。

    1. 创建云硬盘。
      • 接口相关信息

        URI格式:POST /v2/{project_id}/volumes

        详情请参见创建云硬盘

      • 请求示例

        POST https://{endpoint}/v2/74610f3a5ad941998e91f076297ecf27/volumes

        {endpoint}信息请从地区和终端节点获取。

        Body:

        {
            "volume": {
                "name": "openapi_vol02", 
                "availability_zone":"az_test_01", 
                "description": "create for api test", 
                "volume_type": "SSD", 
                "size": 40
            }
        }
      • 响应示例
        {
          "volume": {
            "status": "creating",
            "user_id": "f79791beca3c48159ac2553fff22e166",
            "attachments": [],
            "links": [
              {
                "href": "https://xxx/v2/74610f3a5ad941998e91f076297ecf27/volumes/51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
                "rel": "self"
              },
              {
                "href": "https://xxx/74610f3a5ad941998e91f076297ecf27/volumes/51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
                "rel": "bookmark"
              }
            ],
            "availability_zone": "az_test_01",
            "bootable": "false",
            "encrypted": false,
            "created_at": "2018-05-16T11:19:33.992984",
            "description": "create for api test",
            "updated_at": null,
            "volume_type": "SSD",
            "name": "openapi_vol02",
            "replication_status": "disabled",
            "consistencygroup_id": null,
            "source_volid": null,
            "snapshot_id": null,
            "shareable": false,
            "multiattach": false,
            "metadata": {
              "__system__volume_name": "openapi_vol02"
            },
            "id": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
            "size": 40
          }
        }
    2. 记录响应中“volume”的ID。

  2. 挂载磁盘。

    • 接口相关信息

      URI格式:POST /v2.1/{project_id}/servers/{server_id}/os-volume_attachments

      详情请参见弹性云服务器挂载磁盘

    • 请求示例

      POST https://{endpoint}/v2.1/74610f3a5ad941998e91f076297ecf27/servers/9f4d9281-95e7-4915-a126-1ee597101e2e/os-volume_attachments

      {endpoint}信息请从地区和终端节点获取。

      Body:

      {
          "volumeAttachment": {
              "volumeId": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
              "device": "/dev/sdb"
          }
      }
    • 响应示例
      {
        "volumeAttachment": {
          "id": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
          "volumeId": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
          "serverId": "9f4d9281-95e7-4915-a126-1ee597101e2e",
          "device": "/dev/sdb"
        }
      }

  3. 确认挂载磁盘是否成功。

    • 接口相关信息

      URI格式:GET /v2.1/{project_id}/servers/{server_id}/os-volume_attachments

      详情请参见查询弹性云服务器挂载磁盘信息

    • 请求示例

      GET https://{endpoint}/v2.1/74610f3a5ad941998e91f076297ecf27/servers/9f4d9281-95e7-4915-a126-1ee597101e2e/os-volume_attachments

      {endpoint}信息请从地区和终端节点获取。

    • 响应示例
      {
        "volumeAttachments": [
          {
            "volumeId": "4fc0b4cc-9d6c-431c-be70-3dfeec2ff6e0",
            "id": "4fc0b4cc-9d6c-431c-be70-3dfeec2ff6e0",
            "device": "/dev/sda",
            "serverId": "9f4d9281-95e7-4915-a126-1ee597101e2e"
          },
          {
            "volumeId": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
            "id": "51f45e08-1d4f-44c6-a4a9-84a488e0e8d3",
            "device": "/dev/sdb",
            "serverId": "9f4d9281-95e7-4915-a126-1ee597101e2e"
          }
        ]
      }

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