•Historical field reports describe OpenVMS clusters containing Avanti systems and physical VAX, Alpha, or Itanium systems. Those mixed-hardware configurations have not been reproduced across the Avanti 5.1.0 candidate matrix and are not a current stability qualification.

•Historical field reports also describe satellite booting into a cluster. This procedure has not been revalidated for Avanti 5.1.0; validate the exact OpenVMS release, network path, and cluster configuration before relying on it.