From owner-freebsd-hackers  Mon Jun 30 19:54:22 1997
Return-Path: <owner-hackers>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.5/8.8.5) id TAA02844
          for hackers-outgoing; Mon, 30 Jun 1997 19:54:22 -0700 (PDT)
Received: from misery.sdf.com (misery.sdf.com [204.244.210.193])
          by hub.freebsd.org (8.8.5/8.8.5) with SMTP id TAA02837
          for <freebsd-hackers@freebsd.org>; Mon, 30 Jun 1997 19:54:19 -0700 (PDT)
Received: from tom by misery.sdf.com with smtp (Exim 1.62 #1)
	id 0wit1v-0004K5-00; Mon, 30 Jun 1997 19:50:59 -0700
Date: Mon, 30 Jun 1997 19:50:58 -0700 (PDT)
From: Tom Samplonius <tom@sdf.com>
To: Terry Lambert <terry@lambert.org>
cc: chuckr@glue.umd.edu, lmcsato@lmc.ericsson.se, freebsd-hackers@freebsd.org
Subject: Re: NFS V3 is it stable?
In-Reply-To: <199707010018.RAA10515@phaeton.artisoft.com>
Message-ID: <Pine.BSF.3.95q.970630194523.16592A-100000@misery.sdf.com>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-hackers@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk


On Mon, 30 Jun 1997, Terry Lambert wrote:

> >   I've had sites report that even going Solaris to Solaris using the
> > Solaris propietary lockd stuff, they still can get trashed mailboxes.
> > Locking of any kind over NFS just isn't reliable.
> 
> This is only true if your NFS violates the NFS write guarantees,
> which SVR4 and Solaris do, by default.  Turn off write gathering
> and write caching (the "adb" commands are listed in the Network
> Administration Manual) and the problem will go away.

  So you make a trade reliable locking for performance?  I'd take
performance any day, and just forget about exporting mailboxes.

...
> >   Use IMAP as an alternative.  Set up your mail server as a IMAP server,
> > and use Pine, Simeon (www.esys.ca), or Netscape 4 on your clients.
> 
> Netscape is a known rogue client.  Among other things, it does not
> cache the correct seperator character on a per "#xxx" namespace
> escape.  So if you were reading news in "#news" (seperator "."),
> and went to create a new mail folder, it wouldn't use "/" as the
> component seperator when communicating the new forlder path to the
> server.

  Works with the Cyrus server, which is all I care about.
I don't think the imap spec hides enougth server implementation details,
which makes clients overly complex.

> 					Terry Lambert
> 					terry@lambert.org
> ---
> Any opinions in this posting are my own and not those of my present
> or previous employers.
> 
> 

Tom