From owner-freebsd-questions Mon Sep 17 22: 0:30 2001 Delivered-To: freebsd-questions@freebsd.org Received: from mail.freebsd-corp-net-guide.com (mail.freebsd-corp-net-guide.com [206.29.169.15]) by hub.freebsd.org (Postfix) with ESMTP id 265DE37B405 for ; Mon, 17 Sep 2001 22:00:27 -0700 (PDT) Received: from tedm.placo.com (nat-rtr.freebsd-corp-net-guide.com [206.29.168.154]) by mail.freebsd-corp-net-guide.com (8.11.1/8.11.1) with SMTP id f8I50C621906; Mon, 17 Sep 2001 22:00:14 -0700 (PDT) (envelope-from tedm@toybox.placo.com) From: "Ted Mittelstaedt" To: "dannyman" Cc: "Robert J. Collins" , "Brian Whalen" , Subject: RE: redundant mail servers Date: Mon, 17 Sep 2001 22:00:12 -0700 Message-ID: <004e01c13ffe$cc3d5860$1401a8c0@tedm.placo.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 In-Reply-To: <20010917215436.V11099@toldme.com> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Importance: Normal Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >-----Original Message----- >From: dannyman [mailto:dannyman@toldme.com] >Sent: Monday, September 17, 2001 9:55 PM >To: Ted Mittelstaedt >Cc: Robert J. Collins; Brian Whalen; questions@FreeBSD.ORG >Subject: Re: redundant mail servers > > >On Mon, Sep 17, 2001 at 09:50:46PM -0700, Ted Mittelstaedt wrote: > >> >If you really want reliable mbox file locking on x86 hardware, you >> >might want to try Solaris x86. >> >> There's already mbox file locking in FreeBSD you don't need to go to >> Solaris for that. The issue is that there is not file locking in NFS >> under FreeBSD 4.X series. > >You don't want to trust a "production" system to -CURRENT, though. > Yes, but I get the idea that he's not ready to blow up his current mail system tomorrow. It's something to keep in mind for the future. >> And if Solaris is your idea of reliable mbox locking I'd hate to see what >> you consider unreliable! We use Solaris ourselves and while it's locking >> is adequate, I've had a few weird deadly embrace situations happen with it. >> And that's WITHOUT using Network Flaying System! > >When was this? The Smart People I've talked to tout Solaris for NFS >stuff ... > Four weeks ago with a brand new Solaris8 x86 installation with all patches applied, and the most current versions of sendmail and imap loaded. During testing when imap and the local delivery program in Solaris accessed the mailbox at the same time, both processes got frozen up and neither would budge. It happened one other time after that. I'm crossing my fingers and hoping that it was just a fluke. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message