After data migration is complete, you can view detailed information about migrated files in the migration report. This article describes prerequisites and steps for viewing migration reports. ## Prerequisites You have enabled the migration report push feature when creating the migration task, and the task is complete. ## Storage rules If you enabled the migration report push feature when creating the migration task, DMS will generate reports for file migration success, file migration failure, skipped files, and non\-existent files based on the migration results after the data migration is complete, then store the reports in the destination bucket. The report names in the destination bucket vary based on report type: * File migration success report: named `dms///succeed_` * File migration failure report: named `dms///failed_` * Skipped file report: Name is `dms///skipped_` * File nonexistence report: Name is `dms///nonexistent_` ## Steps 1. Log in to the [TOS console](https://console.volcengine.com/tos). 2. Click **Bucket List** in the left navigation pane. On the **Bucket List** page, click the name of the target bucket for data migration. 3. Find the migration report in the target bucket. Click **Download** in the **Actions** column of the migration report, and view the details locally. The migration report includes file name, file size, and other details. The format is shown below: ![图片](https://p9-arcosite.byteimg.com/tos-cn-i-goo7wpa0wc/845f73c6ecfa4a21a29cf48b77825287~tplv-goo7wpa0wc-image.image) The following section describes the parameters in the migration report: |**Parameter** |**Description** | |---|---| |key |Filename. | |size |File size, measured in bytes. | |is_symlink |Indicates whether this is a symbolic link file. The fields are described as follows:

* `true`: Symbolic link file.

* `false`: Non\-symbolic link file. | |err_msg |Details about migration failures. | |crc_64 |The object's CRC64 checksum. For more information, see [Data Integrity Check](https://www.volcengine.com/docs/6500/1683630). |

Data Migration Service