From owner-freebsd-fs@FreeBSD.ORG Thu Feb 2 16:54:24 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2C05D16A432 for ; Thu, 2 Feb 2006 16:54:24 +0000 (GMT) (envelope-from mnag@FreeBSD.org) Received: from mail.grupos.com.br (mail.grupos.com.br [200.203.183.72]) by mx1.FreeBSD.org (Postfix) with ESMTP id BDA4543D48 for ; Thu, 2 Feb 2006 16:54:23 +0000 (GMT) (envelope-from mnag@FreeBSD.org) Received: from corp.grupos.com.br (unknown [200.193.29.43]) by mail.grupos.com.br (Postfix) with ESMTP id D6E6189EEF for ; Thu, 2 Feb 2006 14:54:21 -0200 (BRST) Received: from [192.168.10.10] (marcus.grupos.com.br [192.168.10.10]) by corp.grupos.com.br (Postfix) with ESMTP id 938FB550D for ; Thu, 2 Feb 2006 14:54:19 -0200 (BRST) Message-ID: <43E2393A.8050109@FreeBSD.org> Date: Thu, 02 Feb 2006 14:54:18 -0200 From: Marcus Alves Grando Organization: FreeBSD.org User-Agent: Thunderbird 1.5 (X11/20060114) MIME-Version: 1.0 To: freebsd-fs@freebsd.org X-Enigmail-Version: 0.94.0.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Mounting UFS non exclusive X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: mnag@FreeBSD.org List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Feb 2006 16:54:24 -0000 People, I install one EMC AX100 and 2 FC Qlogic 2340 in two FreeBSD servers. Both servers can see virtual disk created in AX100, but only one per time can mount. It's possible this two servers mount (read/write) this filesystem? Any help are appreciated. Thanks -- Marcus Alves Grando marcus(at)corp.grupos.com.br | Grupos Internet S/A mnag(at)FreeBSD.org | FreeBSD.org From owner-freebsd-fs@FreeBSD.ORG Thu Feb 2 19:05:28 2006 Return-Path: X-Original-To: freebsd-fs@freebsd.org Delivered-To: freebsd-fs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7C4F016A420; Thu, 2 Feb 2006 19:05:28 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id BF0A443D49; Thu, 2 Feb 2006 19:05:27 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.13.0/8.13.0) with ESMTP id k12J5RoN025965; Thu, 2 Feb 2006 11:05:27 -0800 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.13.0/8.13.0/Submit) id k12J5RUs025964; Thu, 2 Feb 2006 11:05:27 -0800 Date: Thu, 2 Feb 2006 11:05:27 -0800 From: Brooks Davis To: Marcus Alves Grando Message-ID: <20060202190527.GB19264@odin.ac.hmc.edu> References: <43E2393A.8050109@FreeBSD.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ftEhullJWpWg/VHq" Content-Disposition: inline In-Reply-To: <43E2393A.8050109@FreeBSD.org> User-Agent: Mutt/1.4.1i X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on odin.ac.hmc.edu Cc: freebsd-fs@freebsd.org Subject: Re: Mounting UFS non exclusive X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 02 Feb 2006 19:05:28 -0000 --ftEhullJWpWg/VHq Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Feb 02, 2006 at 02:54:18PM -0200, Marcus Alves Grando wrote: > People, >=20 > I install one EMC AX100 and 2 FC Qlogic 2340 in two FreeBSD servers. > Both servers can see virtual disk created in AX100, but only one per > time can mount. >=20 > It's possible this two servers mount (read/write) this filesystem? No. You system will crash. The best you can do is mount two read-only. Actually, I think you might be able to mount a snapshot RO, but I'm not sure. I'd be intrested in knowing if you could do that since it would provide an intresting way to do dump based backups with a SAN or via a dual ported drive (such as SAS drives). -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --ftEhullJWpWg/VHq Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFD4lf2XY6L6fI4GtQRArG+AJwKGDyoLYWC1lIxWvH8qjlUSuWvLQCg0vzc uPZ0532wUnESJAye5hnE2iM= =1yHB -----END PGP SIGNATURE----- --ftEhullJWpWg/VHq--