Special factors to consider for profiling are:
Network Ports:
You must configure all IP Office virtual machines with two Ethernet ports.
If you are using vMotion, additional network port requirement will apply, see vMotion requirements.
Hard disk:
Regardless of the IP Office virtual machine's role, it requires a minimum of 100 GB of allocated hard drive space. However, if required additional hard disk space can be added. See Adjusting the VMware disk space.
To achieve the stated capacity and performance, you must provision all IP Office virtual disks as Thick Provision Eager Zeroed or the equivalent for the particular hosting platform.
If you are planning to run Media Manager on the virtual server, the requirement for an additional hard disk for Media Manager still applies.
Disk Storage IOPS Requirements:
To maintain acceptable performance, the number of virtual machines using the same storage volume and the total throughput of those machines must be within the capacity of that storage. See Disk IOPS requirements.
Profiling Other Virtual Machines:
It is good practice to monitor the resource utilization of all the virtual machines running in their infrastructure. Profile all virtual machines running on the virtual server platform to fine-tune the hardware resources allocated and used. This will improve performance by allocating resources where needed and optimize the use of the virtual infrastructure.
Multiple IP Office Servers:
If deploying servers with the intention of using resiliency, then the hardware resources and profiling applied to each server must include allowance for the scenarios where users re-register from one server to the other, effectively increasing the server's user requirements. If there is a mix of non-virtualized and virtualized machines, then the assignment of resources to the virtual machine must match the hardware resources available in the non-virtualized machine.
