Tom, You can find all kinds of information if you do searches on squid. It's a very popular caching system that runs on *nix. The amount of RAM is directly related to the size of the disk cache. When we had servers 5 years ago (two of them in parallel) they were the fastest processors you could buy, with SCSI disk arrays in each one and I think 2GB of RAM each. I would guess in today's world you would be looking at 8GB or 16GB of RAM and very large disk arrays (6 disks x 500GB maybe). The other thing to consider is you now have another point of failure in your network. If a disk starts acting strange or the machine does a core dump, whatever you have re-directing traffic to the box may take 5 seconds to realize it's down and not send traffic to it. If you put it directly in-line with your traffic flow, you will have a complete failure of all internet services to your customers. :( Travis Microserv Tom DeReggi wrote: Any stats, on how much RAM is a good amount to allocated for the cache servers, per user served?Obviously, a large fast DiskDrive, is needed if caching a lot of large files. I'd also argue that DiskDrive probably should be located on a dedicated appliance. Tom DeReggi RapidDSL & Wireless, Inc IntAirNet- Fixed Wireless Broadband ----- Original Message ----- From: "Marlon K. Schafer" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Thursday, July 10, 2008 10:49 PM Subject: Re: [WISPA] Any thoughts on a decent cache serverWhen we had that trouble we just had to teach them to use the "shift, refresh" trick. forced the cache to load the new page now instead of when it normally would have. No trouble with them after that. marlon ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Thursday, July 10, 2008 8:27 PM Subject: Re: [WISPA] Any thoughts on a decent cache serverThe people that we had the most problems with were web designers who's sites were cached and they couldn't easily see their changes. We always told then to add no cache to their sites. But still it's a phone call and a discussion. Kurt Fankhauser wrote:I call that 1% the "high-maintenance customers ". Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Bo Ring Sent: Thursday, July 10, 2008 4:07 PM To: WISPA General List Subject: Re: [WISPA] Any thoughts on a decent cache server When I was an ISP, that 1% got me in real trouble. They scream loudly. On Jul 10, 2008, at 3:03 PM, David E. Smith wrote:Patrick Nix Jr. wrote:So is it safer/better to avoid caching servers altogether?About 99% of your users won't notice, or know, or care, that you've got anything like that in your network. The savings in bandwidth (and, to a lesser extent, money not spent on bandwidth) can help you out of a tight spot. Just be aware that the last 1% of customers can get you into trouble. David Smith MVN.net---------------------------------------------------------------------------- ----WISPA Wants You! Join today! http://signup.wispa.org/---------------------------------------------------------------------------- ----WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/-------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/-------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/-------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/-------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ |
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