I am setting up a ESXi 4.0 server and have decided to use the CD installers ability to install to a USB key. I have a freebie slow 1GB Newegg USB key and a very fast 4GB Patriot Xporter XT Boost USB key. I'd like to use the Patriot somewhere else, but if speed makes a difference, I'll just buy another one.
Does the speed of the USB key make a noticeable difference when running ESXi?
Answer
I have no concrete benchmarks, but from trying it, the answer is only when initially loading the hypervisor.
I used a 8GB Very Fast USB stick, but then I needed to use it for something else so I replaced it with a cheap 2GB one that I got for free at a trade show.
It boots slightly slower when actually starting ESXi, but once it is loaded and at the half yellow/grey screen, I can not see any difference in speed at all.
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