Version Change

Precautions

• If you need to use this function, choose Service Tickets > Create Service Ticket in the upper right corner of the management console and submit the application.
• Changing the kernel version will restart your DDM instance, and this may interrupt your workloads for a while. Perform this upgrade during off-peak hours or make sure that your applications can be automatically reconnected.
• If the current version differs greatly from the target version, remember to perform thorough compatibility testing on a test instance before changing the version of your production instances, so that production services are not affected.
• If there are incompatibility issues after a version upgrade, roll back your instance to the original version by referring to Rolling Back the Version of a DDM Instance.
• Version rollback is not supported after a downgrade. If there are compatibility issues after a version change, you can upgrade the instance to the original version by referring to Upgrading the Version of a DDM Instance.
• The version can be downgraded to 3.0.6.3 or later.
• Downgrading the instance to a version earlier than 3.0.9 will delete existing administrator accounts. Make sure the downgrade has no impact on your services.

Procedure

1. Log in to the DDM console.
2. On the Instances page, locate the target instance and click its name.
3. On the Basic Information page, in the Instance Information area, click Change beside the Version field.

4. In the displayed dialog box, select Target Version. The system will perform an upgrade or a downgrade based on the target version you selected.

5. Click Change Now. In the displayed dialog box, click Yes.

6. When the version is being changed, the instance status becomes Upgrading or Downgrading. After the change is complete, the instance status changes to Running, and the instance version becomes the target version.