Date: Thu, 1 Jun 2000 10:08:46 -0700 From: "James A. Peltier" <james@aspert.com> To: "James A. Mutter" <jmutter@colltech.com>, "Len Conrad" <lconrad@go2france.com> Cc: <freebsd-questions@FreeBSD.ORG> Subject: Re: Performance Tuning Message-ID: <004301bfcbec$0c554b20$5b2b35d1@aspert.com> References: <Pine.GSO.4.21.0006010246060.15784-100000@psasolar.private.psa.pencom.com>
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Do all of the mail servers have access to a central storage facility? Otherwise how is the system load balanced. I'm trying to setup something much the same but can't find any information on clustering FreeBSD for Web, E-Mail, DNS or Firewall/Proxy. Help would be much appreciated. Try adding `options NMBCLUSTERS=8192` to your kernel config. this will allocate more virtual memory for network buffers. NMBCLUSTERS equation is 512 + MAXUSERS * 16 - James A. Peltier ----- Original Message ----- From: James A. Mutter <jmutter@colltech.com> To: Len Conrad <lconrad@go2france.com> Cc: <freebsd-questions@FreeBSD.ORG> Sent: Thursday, June 01, 2000 12:48 AM Subject: Re: Performance Tuning > > > OK - I'll be a little more specific. I'm going to build several (at least > 10) of these machines in a load balanced environment. The machines will > be running Sendmail 8.X and moving several million messages per day. What > I was after was ideas for kernel, network, and disk performance > tuning. We're probably only talking about 2 disks here, I assume Vinum > will be helpful. Network is 100Mbit, Full Duplex, Switched. > > On Wed, 31 May 2000, Len Conrad wrote: > > > > > >I'm going to be building a few (several) FreeBSD servers to use in a large > > >mail environment. Anyone have any hints or suggestions on what measures I > > >might take to ensure peak performance from these boxes? As far as > > >hardware is concerned we're probably looking at a PIII/500-700 > > >(Whatever is current and available at the time) and a minimum 1G RAM, > > >probably 2 to 4. > > > > See this commercial vendor's performance numbers, his expensive LSMTP > > product, and his sizes of machines: > > > > http://www.lsoft.com/products/default.asp?item=lsmtp > > > > And then go do the same for free with FreeBSD and postfix and maybe > > softupdates filesystem. > > > > Real speed comes from parallel machines and real reliablity comes from > > redundant machines. So build as many FreeBSD/postfix machines as you need. > > > > I know one FreeBSD/postfix user in the financial sector that runs 20 > > FreeBSD/postfix machines to deliver a 100,000 msgs every morning to list > > subscribers to stock market lists. > > > > Len > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-questions" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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