Of course you can :) The trick to making these adjustments is having a means to gauge their benefit/detriment...personally, each of my squid servers have all their metrics graphed in Cacti and generate a Calamaris report each night, so I get good hard data that can be compared to a historical baseline. Put this kind of monitoring in place (especially cacti IMO), and you wont be tied to rules of thumb. -----Original Message----- From: Stand H [mailto:hstandit@xxxxxxxxx] Sent: Wednesday, November 26, 2008 12:40 AM To: Squid Users Subject: Re: Recommended Store Size Hi Chris, > The rule of thumb I've read previously is "storage > equivalent to a week's traffic". If you pass an > average of 30GB per day, a storage size of 210GB is a good > start. I have two squid servers. Each processes around 120GB a day with about 43% request hit ratio and 25% byte hit ratio. The cache size is 300GB with 6GB memory. Per rule of thumb, can I increase my cache size? Thank you. Stand