From owner-freebsd-hackers Mon Sep 24 4:23: 1 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from rfhs8012.fh-regensburg.de (rfhs8012.fh-regensburg.de [194.95.108.29]) by hub.freebsd.org (Postfix) with ESMTP id 1718937B40B for ; Mon, 24 Sep 2001 04:22:59 -0700 (PDT) Received: from rfhpc8320.fh-regensburg.de (wup34966@rfhpc8320.fh-regensburg.de [194.95.108.32]) by rfhs8012.fh-regensburg.de (8.11.6/8.11.6) with ESMTP id f8OBMtP21315 for ; Mon, 24 Sep 2001 13:22:55 +0200 (MEST) Received: (from wup34966@localhost) by rfhpc8320.fh-regensburg.de (8.9.1/8.8.3) id NAA02698 for freebsd-hackers@freebsd.org; Mon, 24 Sep 2001 13:22:53 +0200 (MET DST) Date: Mon, 24 Sep 2001 13:22:53 +0200 From: Peter Wullinger To: freebsd-hackers@freebsd.org Subject: Re: Disk based file system cache Message-ID: <20010924132253.A2599@rfhpc8320.fh-regensburg.de> References: <20010918165302.V17360-100000@scribble.fsn.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20010918165302.V17360-100000@scribble.fsn.hu>; from bra@fsn.hu on Mon, Sep 24, 2001 at 01:07:00PM +0200 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, Sep 24, 2001 at 01:07:00PM +0200, Attila Nagy wrote: > Hello, > > I'm just curious: is it possible to set up an NFS server and a client > where the client has very big (28 GB maximum for FreeBSD?) swap area on > multiple disks and caches the NFS exported data on it? > This could save a lot of bandwidth on the NFS server and also redues load > on that. > I'm not familiar with nfsiod(was it?), but I think, that this NFS run in kernel mode and uses kernel malloc(9) memory for caching. And kernel memory is quite different from user space memory ... Correct me, if I'm wrong. Even if it worked, you will possibly get REAL problems due to synchronisation problems. If your client machines are Linux, Solaris or (;-)) FreeBSD, you can setup CODA from the ports collection, it's much more suitable for this. Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message