From owner-freebsd-fs@FreeBSD.ORG Mon Apr 29 01:57:02 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 2695F32E for ; Mon, 29 Apr 2013 01:57:02 +0000 (UTC) (envelope-from jdc@koitsu.org) Received: from qmta01.emeryville.ca.mail.comcast.net (qmta01.emeryville.ca.mail.comcast.net [IPv6:2001:558:fe2d:43:76:96:30:16]) by mx1.freebsd.org (Postfix) with ESMTP id 0A1651EF4 for ; Mon, 29 Apr 2013 01:57:01 +0000 (UTC) Received: from omta13.emeryville.ca.mail.comcast.net ([76.96.30.52]) by qmta01.emeryville.ca.mail.comcast.net with comcast id VdSF1l00617UAYkA1dx1MU; Mon, 29 Apr 2013 01:57:01 +0000 Received: from koitsu.strangled.net ([67.180.84.87]) by omta13.emeryville.ca.mail.comcast.net with comcast id Vdx01l00A1t3BNj8Zdx0j7; Mon, 29 Apr 2013 01:57:00 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 226C373A1B; Sun, 28 Apr 2013 18:57:00 -0700 (PDT) Date: Sun, 28 Apr 2013 18:57:00 -0700 From: Jeremy Chadwick To: Olav =?unknown-8bit?B?R3L4buVz?= Gjerde Subject: Re: nfsv3 vs nfsv4 ? advantages of moving to v4? Message-ID: <20130429015700.GA91179@icarus.home.lan> References: <20130428145805.GA81766@icarus.home.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20121106; t=1367200621; bh=77/9X86b/ZlDpok7MTEWI0PSs3yHWYa3ycCT/Qq6y9Y=; h=Received:Received:Received:Date:From:To:Subject:Message-ID: MIME-Version:Content-Type; b=TeWimF4DJdaOEiZf/mg4nRCEP2KyxTLiS4kQ2Tm56r5jqKhdNwjxsVtZ6wChZBCDp Z969j4SVYMkES9kIwbu/NUmJkWEHQb/7ZBRQDs1nUeR0cvbdaScmsEaGVqi+oedpeG bnFKsCYTD/z+V11zTfUYlYsCAazVHPQZc9xc8+4Fec41axxEnZVdyZPRJiIYDBvV25 gRb3Aim41u8a3qaJ6Pvt9IwmWcbcfm5QAWQp50SiKRBSgzqTBPSGaTmT1V1lM6kQq4 G688tUgY3CRuGFDNrlD/eUgXhjsHjL0Gzjmn9qkXK5RidWD8Xe6NfZfDEAJsiKvigZ Tb23ZssX+L6tg== Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Apr 2013 01:57:02 -0000 On Sun, Apr 28, 2013 at 07:10:03PM +0200, Olav Grns Gjerde wrote: > If you have three ZFS filesystems: > tank > tank/backup > tank/home > > And if you export /tank with nfsv3, you don't really export /tank/backup > and /tank/home. > You only export the folders, but not it's content > I think it has to do with that you cannot export mounted filesystems within > one exported filesystem. > > With nfsv4 you will with only one export of /tank, export all three, > including /tank/backup and /tank/home > > This was an issue 18 months ago, I cannot confirm if it's still an issue. Maybe I'm still misunderstanding, but it sounds like what you want (for NFSv3) is the -alldirs option, e.g.: /tank -alldirs 10.0.0.20 Which would allow 10.0.0.20 to mount /tank, /tank/backup, /tank/home, or whatever else under /tank, with NFSv3. -- | Jeremy Chadwick jdc@koitsu.org | | UNIX Systems Administrator http://jdc.koitsu.org/ | | Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |