From owner-freebsd-hackers  Sun Feb 18 08:20:59 1996
Return-Path: owner-hackers
Received: (from root@localhost)
          by freefall.freebsd.org (8.7.3/8.7.3) id IAA20669
          for hackers-outgoing; Sun, 18 Feb 1996 08:20:59 -0800 (PST)
Received: from rk.ios.com (rk.ios.com [198.4.75.55])
          by freefall.freebsd.org (8.7.3/8.7.3) with SMTP id IAA20664
          for <hackers@freebsd.org>; Sun, 18 Feb 1996 08:20:55 -0800 (PST)
Received: (from rashid@localhost) by rk.ios.com (8.6.11/8.6.9) id LAA05842 for hackers@freebsd.org; Sun, 18 Feb 1996 11:20:39 -0500
From: Rashid  Karimov <rashid@rk.ios.com>
Message-Id: <199602181620.LAA05842@rk.ios.com>
Subject: Some SERIOUS NFS usage - advice needed
To: hackers@freebsd.org
Date: Sun, 18 Feb 1996 11:20:39 -0500 (EST)
X-Mailer: ELM [version 2.4 PL24]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-hackers@freebsd.org
Precedence: bulk

		Hi there folx,



	We have this idea here of putting online multiple
	mail servers working off single NFS mounted partition.
	It's about 9Gb+ of /var/mail shared between 3-4 hosts
	( we'll probably do round-robin DNS for them or will
	just have MX with same priorities to redistribute
	the load evenly).

	So the Big Question is: will it WORK ???
	Will it be fast enough ( the thing should serve ~20.000 - 50.000
 	active e-mail accounts), will there be problems with locking
	mail-boxes for delivery and reading , what's gonna happen
	to the network , it there a sense in using 100Mb Ethernet,
	how stable is NFS code ?


	Is the idea usable at all for this amount of users ???

	Is NIS+ of any use with this amount of accounts ?

	Any other newtworked file system to be used instead of NFS :)) ?

	If the thing will work, may be we will do the same with news
	system.

	Any expirience with things like that ? 


	Does FreeBD support any of them RAID arrays ? Or the only way is
	to get one in H/W implementation ?


	Rashid

--
                             ------------------

               Beyond the horizon of the place we lived when we were young
               In the world of magnets and miracles
               Our thoughts strayed constantly and without boundary
               The ringing of the division bell had begun ...
                        -=PF, The Division Bell=-