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Cloud Backup:Precheck MySQL (ECS)

Last Updated:Jun 20, 2026

After you register a MySQL database, run a precheck to identify potential issues that could prevent a successful backup.

Prerequisites

Procedure

  1. Log on to the Cloud Backup console.

  2. In the left-side navigation pane, choose Backup > Database Backup. Select a region, and then click MySQL. On the ECS Database Instance tab, find the target MySQL instance and click Precheck in the Actions column.

  3. In the Precheck dialog box, click Start Check.

    Click Check Last Pre-check Result to view the results of the previous precheck. The precheck includes the following items:

    Check item

    Description

    OSS connectivity check

    Checks connectivity from the ECS instance to the internal OSS endpoint through the VPC. If this check fails, you cannot perform backup or recovery operations.

    Control network connectivity check

    Checks connectivity from the instance to the control network. If this check fails, you cannot perform any operations on the database instance.

    Support full backup version check

    Checks whether the database version supports full backup.

    The supported database versions, operating systems, and backup features are limited. For example, you cannot back up MySQL databases that are deployed in Windows. For more information, see List of compatible systems and usage limits.

    BINLOG check

    Checks whether the binlog for the MySQL instance is configured correctly. If this check fails, the database cannot perform log backups.

    The precheck takes about one minute.

    If a check item fails, follow the on-screen instructions to determine its impact on backup and recovery.

    • If there is no impact, no further action is required.

    • If there is an impact, use the item description to troubleshoot the issue.

FAQ

FAQ about MySQL database backup

Next steps

Back up a MySQL database