can anyone tell is good or bad installing ESXi .3.5 4 on usb. please tell your experience. tell me also how fast is it is reliable or is it better to install on on hard drive i want to know or fast is is also its performance and would any of you recommend for home test environment.
I have been using ESX 3i for about 6 months now and I have not had any performance issues and it is convenient also. This is a very good article install it on the USB disk: http://www.symantec.com/connect/articles/how-create-your-own-bootable-esx-3i-usb-stick
ESXi was designed to be installed to flash. Most of the major server manufacturers have had that as an order item for several years. ESXi runs from RAM. There are very few writes to disk (a configuration backup once per hour . . ) . The only way to go in my opinion.