Plan is to preform over a weekend, onsite at remote location.
Backup OA per steps provided.
Preform upgrade in hop fashion...4.4 > 4.5 > 4.6 > 4.8 > 4.9.
If anything were to go wrong would the OA upgrade itself have any effect on the interconnects or even the VMware environment (VMs) running on the blades or is the OA just a management console for the hardware?