Help Center/ Server Migration Service/ FAQs/ Known Errors and Solutions/ SMS.1904 Failed to Create a Snapshot for the Windows Server
Updated on 2024-08-22 GMT+08:00
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SMS.1904 Failed to Create a Snapshot for the Windows Server

Symptom

During the migration, the message "SMS.1904 Failed to create a snapshot for the Windows server" was reported.

Possible Causes

Before data is migrated from a Windows source server, the VSS module is used to create snapshots for the source server. These snapshots will be used to ensure that data on the source and target servers is from the same point in time after the migration is complete. If the VSS module on the source server is faulty, the snapshot creation will fail.

Solution

  1. Go to the Agent configuration directory on the source server.

    • Agent (Python 3)

      C:\SMS-Agent-Py3\config.

    • Agent (Python 2)

      C:\SMS-Agent-Py2\config

  2. Open the g-property.cfg file and change the value of enablesnapshot to False.

    Restart the migration task. The migration task will now skip snapshot creation.

    Figure 1 Modifying the configuration parameter

    If you skip snapshot creation, data on the target server and the source server may be from different points in time during migration, and services on the target server may fail to be started. If this happens, you can stop the software on the source server when no services are running, and then perform a data synchronization to ensure that the data on the source and target servers is from the same point in time.