Memory required?

Hi Folks,
        I'm looking for some feedback on the amount of memory required for
a proxy running 5 x 9gb drives as cache. I'm off the opinion that 1gb of
memory is sufficient, is that correct or would more/less be required?

Thanks All.

--
Alan Sawyer
Network Operations/Engineering 	-  Manager
VICNET - 328 Swanston St, Melbourne, Victoria, 3000.
Ph - +61 3 9669 9710	Fax - +61 3 9669 9805