NATS Server Configuration Advice for Use With Veeam Backup for Microsoft 365

Additional NATS Server Configuration Considerations

• Since the GOMEMLIMIT value is a fixed value, any changes to the amount of system memory should be followed by an adjustment to the GOMEMLIMIT value. For the NATS Server deployed by the Veeam Backup for Microsoft 365 installer, this value is stored as a environmental variable^{"C:\Windows\system32\rundll32.exe" sysdm.cpl,EditEnvironmentVariables} and should consistently be set to 30% of the total system memory.
  
  Note: For deployments on virtual machines with dynamic memory allocation (e.g., Hyper-V), the GOMEMLIMIT value may be set considerably lower than expected if the allocated memory was small during the initial deployment of Veeam Backup for Microsoft 365.