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カスタムパーティショニングとRAID (CPR)

Equinix Metal™はカスタムパーティショニングおよびRAID（CPR）機能を提供しており、予約サーバーの導入時にディスク構成を指定できます。

CPRを使用するには、以下のようなJSONオブジェクトを作成する：

  • フォーマットするディスクを指定する。
  • これらのディスクをどのようにフォーマットするか。
  • ディスク上にどのようなファイルシステムを作成するか。
  • 作成したパーティションをどこにマウントするか。

例題を参考に、あなた自身の作成に取りかかりましょう。

リザーブド・サーバーの要件​

APIを通じてカスタマイズを有効にするには、正確なドライブスキームを事前に知っておく必要があるため、予約サーバーが必要です。カスタムパーティショニングとRAID機能は、オンデマンドインスタンスでは使用できません。

CPRによるプロビジョニング​

CPRを使用するには、APIを通じてハードウェア予約からサーバーをデプロイする必要があります。POST リクエストを projects/<id>/devices エンドポイントに送信する際、リクエスト本文に storage パラメータを持つ JSON オブジェクトとして CPR 設定を送信する必要があります。

curl -X POST \
-H "Content-Type: application/json" \
-H "X-Auth-Token: <API_TOKEN>" \
"https://api.equinix.com/metal/v1/projects/{id}/devices" \
-d '{
  "hardware_reservation_id":"<reservation_id>",
  "hostname": "<your-hostname>",
  "plan": "<plan_slug>",
  "operating_system": "<os_slug>",
  "storage": "<CPR_JSON_definition>",
  }'

一般的な例​

RAID 1ブート、RAID 1 DATA​

  • root パーティションの RAID1 の 2 ディスク。
  • data パーティションの RAID1 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdc",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdd",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": 1,
      "name": "/dev/md/root"
    },
    {
      "devices": [
        "/dev/sdc1",
        "/dev/sdd1"
      ],
      "level": 1,
      "name": "/dev/md/data"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/md/root",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/data",
        "format": "ext4",
        "point": "/data",
        "create": {
          "options": [
            "-L",
            "DATA"
          ]
        }
      }
    }
  ]
}

RAID1ブート、RAID0 DATA​

  • root パーティションの RAID1 の 2 ディスク。
  • data パーティション用の RAID0 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdc",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdd",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": 1,
      "name": "/dev/md/root"
    },
    {
      "devices": [
        "/dev/sdc1",
        "/dev/sdd1"
      ],
      "level": 0,
      "name": "/dev/md/data"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/md/root",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/data",
        "format": "ext4",
        "point": "/data",
        "create": {
          "options": [
            "-L",
            "DATA"
          ]
        }
      }
    }
  ]
}

RAID1ブートのみ​

  • root パーティション専用の RAID1 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": 1,
      "name": "/dev/md/root"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/md/root",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    }
  ]
}

サーバー別の例​

c3.small.x86​

c3.small.x86には2台の480GBドライブが搭載されています。この例では、ドライブの1つを使用し、3つのパーティション（BIOS、スワップ、ルート）を作成し、スワップパーティションをスワップ、ルートパーティションをext4としてフォーマットします。

{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "3993600"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": 0
        }
      ]
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/sda3",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/sda2",
        "format": "swap",
        "point": "none",
        "create": {
          "options": [
            "-L",
            "SWAP"
          ]
        }
      }
    }
  ]
}

c3.medium.x86​

  • root パーティションの RAID1 の 2 ディスク。
  • data パーティションの RAID1 の 2 ディスク。
  • swap パーティション用の RAID0 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "8G"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "8G"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdc",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdd",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda3",
        "/dev/sdb3"
      ],
      "level": 1,
      "name": "/dev/md/root"
    },
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": 0,
      "name": "/dev/md/swap"
    },
    {
      "devices": [
        "/dev/sdc1",
        "/dev/sdd1"
      ],
      "level": 1,
      "name": "/dev/md/data"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/md/root",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/data",
        "format": "ext4",
        "point": "/data",
        "create": {
          "options": [
            "-L",
            "DATA"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/swap",
        "format": "swap",
        "point": "none",
        "create": {
          "options": [
            "-L",
            "SWAP"
          ]
        }
      }
    }
  ]
}

c3.medium.x86（スワップなし）​

  • root パーティションの RAID1 の 2 ディスク。
  • data パーティションの RAID1 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": 4096
        },
        {
          "label": "ROOT",
          "number": 2,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdc",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    },
    {
      "device": "/dev/sdd",
      "wipeTable": true,
      "partitions": [
        {
          "label": "DATA",
          "number": 1,
          "size": 0
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": 1,
      "name": "/dev/md/root"
    },
    {
      "devices": [
        "/dev/sdc1",
        "/dev/sdd1"
      ],
      "level": 1,
      "name": "/dev/md/data"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/md/root",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/data",
        "format": "ext4",
        "point": "/data",
        "create": {
          "options": [
            "-L",
            "DATA"
          ]
        }
      }
    }
  ]
}

s3.xlarge.x86​

s3.xlargeには、2 x 960 GB SSD、12 x 8 TB HDD、2 x 256 GBのNVMeフラッシュが搭載されています。この例では、2 x 960 GB SSDはRAID 1のROOTとSWAPで使用され、12 x 8 TBはRAID 10のDATAで使用されます。NVMeドライブは他の用途のために残されています。

{
    "disks": [
    {
        "device": "/dev/sdn",
        "wipeTable": true,
        "partitions": [
        {
            "label": "BIOS",
            "number": 1,
            "size": 4096
        },
        {
            "label": "SWAP",
            "number": 2,
            "size": "8G"
        },
        {
            "label": "ROOT",
            "number": 3,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdm",
        "wipeTable": true,
        "partitions": [
        {
            "label": "BIOS",
            "number": 1,
            "size": 4096
        },
        {
            "label": "SWAP",
            "number": 2,
            "size": "8G"
        },
        {
            "label": "ROOT",
            "number": 3,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdj",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sda",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdc",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdi",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdb",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdk",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdf",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdd",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdg",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sde",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdl",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    },
    {
        "device": "/dev/sdh",
        "wipeTable": true,
        "partitions": [
        {
            "label": "DATA",
            "number": 1,
            "size": 0
        }
        ]
    }
    ],
    "raid": [
    {
        "devices": [
        "/dev/sda1",
        "/dev/sdb1",
        "/dev/sdc1",
        "/dev/sdd1",
        "/dev/sde1",
        "/dev/sdf1",
        "/dev/sdg1",
        "/dev/sdh1",
        "/dev/sdi1",
        "/dev/sdj1",
        "/dev/sdk1",
        "/dev/sdl1"
        ],
        "level": "10",
        "name": "/dev/md/DATA"
    },
    {
        "devices": [
        "/dev/sdm2",
        "/dev/sdn2"
        ],
        "level": "1",
        "name": "/dev/md/SWAP"
    },
    {
        "devices": [
        "/dev/sdm3",
        "/dev/sdn3"
        ],
        "level": "1",
        "name": "/dev/md/ROOT"
    }
    ],
    "filesystems": [
    {
        "mount": {
        "device": "/dev/md/ROOT",
        "format": "ext4",
        "point": "/",
        "create": {
            "options": [
            "-L",
            "ROOT"
            ]
        }
        }
    },
    {
        "mount": {
        "device": "/dev/md/DATA",
        "format": "ext4",
        "point": "/DATA",
        "create": {
            "options": [
            "-L",
            "DATA"
            ]
        }
        }
    },
    {
        "mount": {
        "device": "/dev/md/SWAP",
        "format": "swap",
        "point": "none",
        "create": {
            "options": [
            "-L",
            "SWAP"
            ]
        }
        }
    }
    ]
}

EFI対応m3.small.x86​

  • EFI対応
  • swap パーティションの RAID1 の 2 ディスク。
  • root パーティションの RAID1 の 2 ディスク。
{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": "512M"
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "4G"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": "0"
        }
      ]
    },
    {
      "device": "/dev/sdb",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": "512M"
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "4G"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": "0"
        }
      ]
    }
  ],
  "raid": [
    {
      "devices": [
        "/dev/sda2",
        "/dev/sdb2"
      ],
      "level": "1",
      "name": "/dev/md/SWAP"
    },
    {
      "devices": [
        "/dev/sda3",
        "/dev/sdb3"
      ],
      "level": "1",
      "name": "/dev/md/ROOT"
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/sda1",
        "format": "vfat",
        "create": {
          "options": [
            "32",
            "-n",
            "EFI"
          ]
        },
        "point": "/boot/efi"
      }
    },
    {
      "mount": {
        "device": "/dev/md/ROOT",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/md/SWAP",
        "format": "swap",
        "point": "none",
        "create": {
          "options": [
            "-L",
            "SWAP"
          ]
        }
      }
    }
  ]
}

UEFIのみのサーバーの例​

c2.large.armとc2.medium.x86というUEFIのみのレガシーサーバーがあります。/boot/efi では FAT32 EFI パーティションを使用する必要があります。これはc2.medium.x86の構成例で、2 x 120 GB SSDと2 x 480 GB SSDドライブを搭載しています。

{
  "disks": [
    {
      "device": "/dev/sda",
      "wipeTable": true,
      "partitions": [
        {
          "label": "BIOS",
          "number": 1,
          "size": "512M"
        },
        {
          "label": "SWAP",
          "number": 2,
          "size": "3993600"
        },
        {
          "label": "ROOT",
          "number": 3,
          "size": 0
        }
      ]
    }
  ],
  "filesystems": [
    {
      "mount": {
        "device": "/dev/sda1",
        "format": "vfat",
        "point": "/boot/efi",
        "create": {
          "options": [
            "32",
            "-n",
            "EFI"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/sda3",
        "format": "ext4",
        "point": "/",
        "create": {
          "options": [
            "-L",
            "ROOT"
          ]
        }
      }
    },
    {
      "mount": {
        "device": "/dev/sda2",
        "format": "swap",
        "point": "none",
        "create": {
          "options": [
            "-L",
            "SWAP"
          ]
        }
      }
    }
  ]
}
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