This is a capacity planning question using ESX 4.0
If each of my ESX hosts contains 64GB of RAM, when trying to calculate average requirements, how much should I set asside for ESX?
I'll share my calculations so far:
2GB to run ESX (This is what I need confirmation on)
800MB service console
25 x 2GB virtual machines with 1 x vCPU in each = total 51,200MB (50GB)
Memory overhead for running the 25 VMs = 3.5GB
So, if my maths are correct, I've roughly alloacted 56.3GB (88%) leaving me with 7.7GB (12%) RAM available.
Do these calculations match what other people are doing? Have a missed anything here?