From owner-freebsd-stable@FreeBSD.ORG Tue Jun 2 19:39:19 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 68B33106568A for ; Tue, 2 Jun 2009 19:39:19 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.240]) by mx1.freebsd.org (Postfix) with ESMTP id 1F7BE8FC15 for ; Tue, 2 Jun 2009 19:39:18 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: by an-out-0708.google.com with SMTP id c3so4466740ana.13 for ; Tue, 02 Jun 2009 12:39:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=hRHI6rnWs/NmuOVo9THfFyOL+Ej3hArjDNfhwPtlNhs=; b=DF6ci5Pg38XOn+nFBLFqZ9Rtl1VNaDEZ7PaAaa8BSyTiII5qH4XwJ4eClQTaN1c4GZ /TD8YUFNH3jOfJxPTWzlEjFHz2LMLDKx06yLTYz4jb8W8SNmhMdDQdiSVB3fCynO2QLH qlrBg8uUmulF/E9Ql7pQOMC305bysnawj2L2I= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=NRvLj+LMfVCDk6wO6ry6oy2G1hDLHBXW749RGX4PsTI+lMTYKmQhPa4If4flEbIlM0 J5i1cfPubTj8oGNvXDHtqEbOZ7jkZYlOgxpMhYux/wMU69cCg5ED6z+0mOa8PUZwQENP 0BbFR02XCyt1rO3RMRL0tX/ZPoATNNVx9c8ZA= MIME-Version: 1.0 Received: by 10.100.251.7 with SMTP id y7mr86781anh.178.1243971558555; Tue, 02 Jun 2009 12:39:18 -0700 (PDT) In-Reply-To: <5f67a8c40906021147h48bc1c36y5de42fdc0d18677e@mail.gmail.com> References: <8B50CE3F-FCC5-42D6-8FFE-591178F3DFB6@ish.com.au> <5f67a8c40906021147h48bc1c36y5de42fdc0d18677e@mail.gmail.com> Date: Tue, 2 Jun 2009 22:39:17 +0300 Message-ID: From: Dan Naumov To: Zaphod Beeblebrox Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-stable@freebsd.org Subject: Re: ZFS NAS configuration question X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Jun 2009 19:39:19 -0000 This reminds me. I was reading the release and upgrade notes of OpenSolaris 2009.6 and noted one thing about upgrading from a previous version to the new one:: When you pick the "upgrade OS" option in the OpenSolaris installer, it will check if you are using a ZFS root partition and if you do, it intelligently suggests to take a current snapshot of the root filesystem. After you finish the upgrade and do a reboot, the boot menu offers you the option of booting the new upgraded version of the OS or alternatively _booting from the snapshot taken by the upgrade installation procedure_. Reading that made me pause for a second and made me go "WOW", this is how UNIX system upgrades should be done. Any hope of us lowly users ever seeing something like this implemented in FreeBSD? :) - Dan Naumov On Tue, Jun 2, 2009 at 9:47 PM, Zaphod Beeblebrox wrote: > > > The system boots from a pair of drives in a gmirror. Mot because you can't > boot from ZFS, but because it's just so darn stable (and it predates the use > of ZFS). > > Really there are two camps here --- booting from ZFS is the use of ZFS as > the machine's own filesystem. This is one goal of ZFS that is somewhat > imperfect on FreeBSD at the momment. ZFS file servers are another goal > where booting from ZFS is not really required and only marginally > beneficial. > > >