Review your Veeam version, document your SQL maintenance schedule, and test a CBT reset procedure this week.

Look for lines like:

To avoid overflow errors in modern environments:

Third-party VSS writers on a guest VM (like SQL Server or Exchange) may pass unusual metadata sizes to Veeam. A VSS writer reporting a dwEstimatedSize value of FFFFFFFF (hex) can trigger an overflow in the Veeam VSS requestor.

Move exceptionally large VMs out of multi-VM jobs and isolate them into dedicated backup jobs to allocate more isolated proxy resources to them. 3. Patch and Update Veeam

If your backups are still completing successfully, this error is often safe to ignore as it typically only affects how data is displayed in the GUI. 2. Snapshot Overflow (Veeam Agent for Linux)

If your logs show "Snapshot overflow," the backup failed because the temporary snapshot file ran out of space.

In , some catalog and proxy services had hard memory limits. To resolve:

If you can tell me (WAN Accelerator, VSS, or Repository) and if you have recently updated Veeam , I can help you find a more targeted solution. Arithmetic Overflow Error / Abnormal transfer rates

During replication or backup copy jobs across WAN links, data is buffered into memory before transmission.