Instant restore is successful,but failed to migrate cache data with [ERROR:89#Read file error]

Product: Vinchin Backup & Recovery

Version: V9.0

KB Number: 200186

Last Modified: 2026-09-01 15:48:47

Question

Instant restore is running normally, when migrating cache data at the last step, job failed with 89#Read file error


Answer

Error occurred while transferring cache data for the disk whose size is not an integer multiple of GB.


Solution

Temporary solution :

Replace the temporary program made by us to temporarily solve this issue.

Contact the Technical Support Team for assistance.Please collect some local environment info in advance:

  • Migration requirements

  • Entire virtual platform lists used

  • Number of virtual machines with the disk whose size is not an integer multiple of GB

Final Solution:

The fundamental solution is already on the way.

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