From owner-freebsd-isp@FreeBSD.ORG Fri May 9 00:09:15 2003 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4843E37B401 for ; Fri, 9 May 2003 00:09:15 -0700 (PDT) Received: from misery.sdf.com (misery.sdf.com [207.200.153.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1BD4D43F93 for ; Fri, 9 May 2003 00:09:13 -0700 (PDT) (envelope-from tom@sdf.com) Received: from tom (helo=localhost) by misery.sdf.com with local-esmtp (Exim 2.12 #1) id 19E0Pu-0007GI-00; Thu, 8 May 2003 22:27:34 -0700 Date: Thu, 8 May 2003 22:27:29 -0700 (PDT) From: Tom Samplonius To: Troy Settle In-Reply-To: <000001c31590$a65c3300$23fbab3f@psknet.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-isp@freebsd.org Subject: Re: Virus Scanning X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 May 2003 07:09:15 -0000 Well, mfs is backed by swap, so an actual ram disk could be better (man md). You'd be much better of with a virus scanner that can scan into archives. There are no files to create. Kasperksy can do this. It will likely be twice as fast as any virus scanner that requires unMIMEing and unarchiving. Tom On Thu, 8 May 2003, Troy Settle wrote: > > I'm trying to figure out the best approach to handle virus scanning on > my new mail server. The machine itself is a beast: > Dual Xeon 2.4GHZ (HT) > 4GB RAM > U160 RAID1 (system) > U160 RAID5 (storage) > > Originally, I was thinking that handling the virus scanning on a memory > file system would be best to keep disk IO to a minimum, however, I'm > unable to demonstrate the mfs is any faster than a real disk, even when > copying 200MB files. This is probably due to softupdates. > > So, with softupdates enabled, is there any real disk IO if an email > message (and it's attachments) are extracted, written, scanned, and > deleted within a few hundred milliseconds? Would there be any real > advantage to performing these operations on a memory filesystem? > > TIA, > > -- > Troy Settle > Pulaski Networks > http://www.psknet.com > 540.994.4254 - 866.477.5638 > > > _______________________________________________ > freebsd-isp@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-isp > To unsubscribe, send any mail to "freebsd-isp-unsubscribe@freebsd.org" > >