The Arc misconception: Organizations deploy Azure Arc thinking it will "extend Azure Policy to on-prem servers." Then they discover 64% of their Arc registrations are ghost VMs that don't exist, governance dashboards are wrong, and nobody knows what's actually managed.
After managing Azure Arc at scale for VMware environments with 850+ VMs, I've learned that Arc success requires three things Microsoft doesn't emphasize:
- Inventory reconciliation first โ Arc registrations must sync with your CMDB or VMware inventory, or governance data is fiction.
- Ghost registration cleanup โ VMs get deleted but Arc registrations persist, wrecking compliance reports and cost tracking.
- Private Link architecture โ Public internet Arc connectivity creates firewall complexity and security risk in regulated environments.
This hub contains the Arc implementation guides, inventory reconciliation strategies, and governance patterns I've built to make Azure Arc actually work in enterprise VMware and hybrid environments.