:Migrate data to the cloud and verify the migration result

Prerequisites

Your data is migrated to a Data Transport II device, the data migration task is complete, and the device is powered off.

Return the device

1. Check the migration task status

Run the following commands in sequence to check whether the migration task status is succeed, and check whether the migrated data is consistent with that in the source file by performing CRC-64 verification.:

• Run the cdmgwclient command to access the corresponding directory.

• Run the bash console.sh status <job_name> command to view the migration task status. Replace job_name with the actual migration task name.

2. Stop the migration task

Run the following command in sequence to stop the migration task:

• beforepoweroff

3. Uninstall and lock a storage pool

Run the following command to uninstall and lock a storage pool:

• crypt close

4. Power off the device

Run the poweroff command to power off the device.

5. Check accessories

1. Check whether two optical transceiver modules are installed on a 10 Gbit/s optical port.

2. Check whether two optical transceiver modules are installed on a 25 Gbit/s optical port.

3. Check whether the power cable is properly stowed under the top panel of the device.

4. Return the Data Transport device through the specified logistics company that cooperates with Alibaba Cloud.

Migrate data to the cloud and verify the migration result

Grant permissions to a RAM role

Alibaba Cloud uses a specific Resource Access Management (RAM) role to upload data in the Data Transport device to the Object Storage Service (OSS) bucket that you specified. You must grant the required permissions to the specified RAM role. Perform the following steps to grant the required permissions to the specified RAM role:

• Log on to the OSS console.

• In the left-side navigation pane, click Buckets and click the name of the desired bucket.

• In the left-side navigation pane, choose Permission Control > Bucket Policy.

• On the Bucket Policy tab, select Add by Syntax. In the editor, specify a custom bucket policy, click Edit, and then click Save.

  • Grant the RAM role the permissions to list, read, delete, and write all resources in the bucket.

{
  "Version": "1",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "oss:List*",
        "oss:Get*",
        "oss:Put*",
        "oss:AbortMultipartUpload"
      ],
      "Principal": [
         "arn:sts::1986505809429276:assumed-role/mgw-data-transport-role/*"
      ],
      "Resource": [
        "acs:oss:*:<myuid>:<mybucket>",
        "acs:oss:*:<myuid>:<mybucket>/*"
      ]
    }
  ]
}

Migrate data to the cloud

Alibaba Cloud uses a specific RAM role that you grant the required permissions to migrate the data in the Data Transport device to the cloud. After the data is migrated to the cloud, Alibaba Cloud will provide you with a data migration report. You can verify the migration results based on the data migration report. This is the end of the migration task.

Data migration report

After a data migration report is generated, the migration report files are stored in the specified OSS bucket. The directories in which migration report files are stored are shown in the following code block:

OSS://<bucket>/<prefix>/aliyun_import_report/<uid>/<jobid>/<runtimeid>/total_list/
OSS://<bucket>/<prefix>/aliyun_import_report/<uid>/<jobid>/<runtimeid>/failed_list/
OSS://<bucket>/<prefix>/aliyun_import_report/<uid>/<jobid>/<runtimeid>/skipped_list/

Verify the migration result

Data Transport only processes the migration of data and does not ensure data consistency or integrity. After the migration task is complete, you must review all the migrated data and verify the data consistency between the source and destination data addresses. You must also revoke the permissions on the Data Transport device granted to the specified RAM role.