From owner-freebsd-questions Thu Jun 13 2: 6:29 2002 Delivered-To: freebsd-questions@freebsd.org Received: from relay.systec.no (box80-64-196-210.sdsl.no [80.64.196.210]) by hub.freebsd.org (Postfix) with ESMTP id 14DAB37B653 for ; Thu, 13 Jun 2002 02:03:31 -0700 (PDT) Received: from skywalker.systec.no (isa.systec.no [192.168.100.3]) by relay.systec.no (8.11.6/8.11.6) with ESMTP id g5D93U311353; Thu, 13 Jun 2002 11:03:32 +0200 (CEST) (envelope-from oystein.andreassen@systec.no) Received: by skywalker.systec.no with Internet Mail Service (5.5.2653.19) id ; Thu, 13 Jun 2002 11:03:12 +0200 Message-ID: From: =?iso-8859-1?Q?=D8ystein_Andreassen?= To: "'BSD Freak'" , FreeBSD Questions Subject: RE: Network RAID on FreeBSD Date: Thu, 13 Jun 2002 11:03:06 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 What kind of services needs failover? Just plain files? Have you looked at CODA? http://www.coda.cs.cmu.edu/ It might be possible to set up to coda replicated servers. But I'm not = sure how this replication works. :)=20 But it might be worth a look. I also think it's possible to store data on a SAN, connect both servers = to it and when the master fail, make the slave mount whatever it needs. = But this kind of solution costs money, and you have to place the SAN on one = of the locations (or a third), so if you have a fire or anything you will = lose it. But it would be much easier to help if we knew what kind of services = you need failover for... =D8ystein -----Original Message----- From: BSD Freak [mailto:bsd-freak@mbox.com.au] Sent: Thursday, June 13, 2002 02:36 To: FreeBSD Questions Subject: Network RAID on FreeBSD Hi all, We have a server which is highly critical. Data loss or downtime on it=20 is not an option so we have a hardware RAID 1 and also a second "hot=20 host" (in another building) which replicates data from the main one=20 every 30 minutes (via rsync). However it is this 30 minute window that=20 concerns me because that leaves us open to 30 minutes of data loss.=20 So basically what I'm asking is (without switching to Sun equipent) is=20 it possible to do some sort of network RAID where data is written to=20 both systems simultaneously? We need our system to carry on with no=20 data loss even if one of the servers should suffer a complete system=20 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message