From owner-freebsd-questions Wed Jun 12 17:39:21 2002 Delivered-To: freebsd-questions@freebsd.org Received: from smtp2.mbox.com.au (203-134-146-019.cust.pth.iprimus.net.au [203.134.146.19]) by hub.freebsd.org (Postfix) with ESMTP id 6527A37B400 for ; Wed, 12 Jun 2002 17:39:17 -0700 (PDT) Received: from nms2.mbox.com.au (webmail.mbox.com.au [192.168.20.4]) by smtp2.mbox.com.au (Sun Internet Mail Server sims.4.0.2000.05.17.04.13.p6) with ESMTP id <0GXM00CGBC8FIJ@smtp2.mbox.com.au> for freebsd-questions@FreeBSD.ORG; Thu, 13 Jun 2002 08:33:51 +0800 (WST) Received: from mbox.com.au ([127.0.0.1]) by nms2.mbox.com.au (Netscape Messaging Server 4.15) with ESMTP id GXMCBN00.CNX for ; Thu, 13 Jun 2002 08:35:47 +0800 Date: Thu, 13 Jun 2002 10:35:47 +1000 From: BSD Freak Subject: Network RAID on FreeBSD To: FreeBSD Questions Message-id: <123a0fb123a261.123a261123a0fb@mbox.com.au> MIME-version: 1.0 X-Mailer: Netscape Webmail Content-type: text/plain; charset=us-ascii Content-language: en Content-disposition: inline Content-transfer-encoding: 7BIT X-Accept-Language: en Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Hi all, We have a server which is highly critical. Data loss or downtime on it is not an option so we have a hardware RAID 1 and also a second "hot host" (in another building) which replicates data from the main one every 30 minutes (via rsync). However it is this 30 minute window that concerns me because that leaves us open to 30 minutes of data loss. So basically what I'm asking is (without switching to Sun equipent) is it possible to do some sort of network RAID where data is written to both systems simultaneously? We need our system to carry on with no data loss even if one of the servers should suffer a complete system failure (ie be blown up or thrown out of the window)...... --------------------------------------------------------------------- Faxes delivered directly to any email address, new to mBox! Find out more http://www.mbox.com.au/fax To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message