From owner-freebsd-stable@FreeBSD.ORG Mon Jun 9 13:49:31 2008 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 DA4EF1065680 for ; Mon, 9 Jun 2008 13:49:31 +0000 (UTC) (envelope-from daniel@skytek.it) Received: from mail.skytek.it (mail.skytek.it [217.194.176.18]) by mx1.freebsd.org (Postfix) with ESMTP id 3B6B08FC27 for ; Mon, 9 Jun 2008 13:49:31 +0000 (UTC) (envelope-from daniel@skytek.it) Received: from [192.168.30.100] ([192.168.30.100]) by mail.skytek.it (Skytek Mail Server v.11.47-p9) with ASMTP id PTG64029; Mon, 09 Jun 2008 15:49:29 +0200 Message-ID: <484D34F4.4050902@skytek.it> Date: Mon, 09 Jun 2008 15:49:40 +0200 From: Daniel Ponticello User-Agent: Thunderbird 2.0.0.14 (Windows/20080421) MIME-Version: 1.0 To: Stefan Lambrev References: <3cc535c80806071158h44ec9be1pbe72ca6711016bde@mail.gmail.com> <484AE6E1.2050504@skytek.it> <484D22ED.5060500@moneybookers.com> In-Reply-To: <484D22ED.5060500@moneybookers.com> Content-Type: text/plain; charset=windows-1251; format=flowed Content-Transfer-Encoding: 7bit Cc: Andy Kosela , freebsd-stable@FreeBSD.org Subject: Re: Current status of support for high end SAN hardware 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: Mon, 09 Jun 2008 13:49:32 -0000 man gmultipath is your friend ;) MULTIPATH ARCHITECTURE This is an active/passive multiple path architecture with no device knowledge or presumptions other than size matching built in. Therefore the user must exercise some care in selecting providers that do indeed represent multiple paths to the same underlying disk device. The reason for this is that there are several criteria across multiple underlying transport types that can indicate identity, but in all respects such identity can rarely be considered definitive. Regards, Daniel Stefan Lambrev ha scritto: > > > Daniel Ponticello wrote: >> On FreeBSD7, i'm succesfully using Qlogic 4gb fibre channel HBAs (ISP >> driver) >> attached to Fibre Brocade Switch and IBM DS4700 (14 disks array) >> using 4 way multipath >> with gmultipath. > So far the support in gmultipath is active/passive only? I think in > RH5 you can have active/active. > Am I right? >> >> Regards, >> >> Daniel >> >> Andy Kosela ha scritto: >>> Hi all, >>> What is the current status of support for high end SAN hardware in >>> FreeBSD? >>> I'm especially interested in support for HP EVA/XP disk arrays, Qlogic >>> HBAs, multipathing. >>> How FreeBSD compares in this environment to RHEL 5? >>> >>> >> > -- WBR, Cordiali Saluti, Daniel Ponticello, VP of Engineering Network Coordination Centre of Skytek --- - For further information about our services: - Please visit our website at http://www.Skytek.it ---