There are multiple ways to monitor Veeam B&R server:
1. If you need backup reporting (such as Protected VMs, Capacity planning for the backup repositories) and proper monitoring of Veeam backup servers, then Veeam ONE is the way to go.
2. If you want to monitor and report on Veeam Cloud Connect (quotas etc), then you can use Veeam ONE FREE, Veeam Availability Console
(built for service providers) or PowerShell scripts (here is one of them
) is the recommended approach.
3. If you want to monitor just Veeam backup events and capture them via IBM Tivoli, then you can use this document > Veeam Backup & Replication Events (9.x)