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Starting a Migration Task

Last updated: 2024-01-22 22:15:47

    Overview

    This document describes how to start a migration task.

    Directions

    Step 1. Create a migration task

    1. Log in to the CFS console and go to the Data Migration Service page.
    2. Click Create migration job.
    
    
    
    Note:
    Your account needs to be added to the allowlist before you can use this feature. If you need it, submit a ticket for application.

    Step 2. Select the region for migration

    Select the destination CFS region as the region for migration.

    Step 3. Select the source service provider

    Select ‍Tencent Cloud COS‍.
    
    
    

    Step 4. Select the migration method

    Currently, bucket migration and inventory migration are supported:
    
    
    
    Bucket migration: It is suitable for migrating an object storage bucket or all objects in a certain directory.
    Inventory migration: It is suitable for migrating objects within a specified time period. Currently, you can export the objects modified after a time point or within a time period through the object storage inventory for filtered data migration.

    Step 5. Select the overwriting method

    
    
    Currently, overwriting by last modified time, full overwriting, and no overwriting are supported.
    Overwriting by last modified time: When files with the same name exist, their LastModified values are checked, i.e., last modified time.
    If the LastModified value of the file in the source address is earlier than that of the file in the destination address, no overwriting is performed.
    If the LastModified value of the file in the source address is later than that of the file in the destination address, overwriting is performed.
    If the two files have the same LastModified value, further check:
    If their Size values are different, overwriting is performed.
    If their Size values are the same, no overwriting is performed.
    Full overwriting: Files with the same name are overwritten without any check.
    No overwriting: In contrast to full overwriting, this method means no overwriting of files with the same name without any check.

    Step 6. Enter the SecretId and SecretKey

    Enter the SecretId and SecretKey required by access to object storage, which are encrypted on the platform. If you use a temporary key, make sure that the migration task can be completed during the validity period of the key; otherwise, part of the migration will fail.
    
    
    

    Step 7. Enter the source information (required for bucket migration only)

    Currently, you can either select a bucket or enter the source bucket address (object storage endpoint) in the console. For data transfer from the root path, make sure that the source path is empty. For data transfer from a subpath, the source path should end with "/".
    
    
    

    Step 8. Enter the inventory URL (required for inventory migration only)

    Enter the URL of the manifest.json file of the object storage inventory. Specifically, after an inventory is generated, find the URL of the manifest.json file and enter it as the inventory URL.
    
    
    

    Step 9. Select the destination file system

    Select the destination file system and path. For data migration from the root path, leave the destination path empty. If the migration is from the test directory, enter either /test or /test/.
    
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