What is your Veeam server using (SQL Express, SQL Standard, or PostgreSQL)?
Sometimes, the error is not within Veeam itself but in how the Windows OS handles the asynchronous I/O requests from the Veeam Data Mover. veeam backup and replication overflow error
Backup your Veeam database first.
For physical host overflow errors (common on Dell PowerEdge or HPE servers with Broadcom NICs): What is your Veeam server using (SQL Express,
Overflow errors in Veeam environments generally fall into three categories: integer overflows, database overflows, and metadata/index overflows. 1. Database Integer Overflows or PostgreSQL)? Sometimes