From owner-freebsd-questions@FreeBSD.ORG Mon May 31 16:33:24 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 45C3B16A4CE for ; Mon, 31 May 2004 16:33:24 -0700 (PDT) Received: from ybbsmtp04.mail.yahoo.co.jp (ybbsmtp04.mail.yahoo.co.jp [210.81.151.172]) by mx1.FreeBSD.org (Postfix) with SMTP id 3586F43D45 for ; Mon, 31 May 2004 16:33:23 -0700 (PDT) (envelope-from ayakokiko@ybb.ne.jp) Received: from unknown (HELO gorgon.near.this) (219.11.234.11 with poptime) by ybbsmtp04.mail.yahoo.co.jp with SMTP; 31 May 2004 23:33:04 -0000 X-Apparently-From: Received: from hydra.near.this (hydra.near.this [10.0.3.20]) by gorgon.near.this (Postfix) with ESMTP id A93BC7F24; Tue, 1 Jun 2004 08:32:59 +0900 (JST) Received: by hydra.near.this (Postfix, from userid 100) id 873ED9857; Tue, 1 Jun 2004 08:32:58 +0900 (JST) Date: Tue, 1 Jun 2004 08:32:56 +0900 From: horio shoichi To: "adp" In-Reply-To: <020501c44619$d44e6250$6501a8c0@yourqqh4336axf> References: <020501c44619$d44e6250$6501a8c0@yourqqh4336axf> X-Mailer: Sylpheed version 0.9.10claws (GTK+ 1.2.10; i386-portbld-freebsd4.9) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Message-Id: <20040531.233258.1370f49f3ad40779.10.0.3.20@bugsgrief.net> cc: questions@freebsd.org Subject: Re: NFS server fail-over - how do you do it? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 May 2004 23:33:24 -0000 On Sun, 30 May 2004 02:43:37 -0500 "adp" wrote: > I am running a FreeBSD 4.9-REL NFS server. Once every several hours our main > NFS server replicates everything to a backup FreeBSD NFS server. We are okay > with the gap in time between replication. What we aren't sure about is how > to automate the fail-over between the primary to the secondary NFS server. > This is for a web cluster. Each client mounts several directories from the > NFS server. > > Let's say that our primary NFS server dies and just goes away. What then? > Are you periodically doing a mount or a file look-up of a mounted filesystem > to check if your NFS server died? If so are you just unmounting and > remounting everything using the backup NFS server? > > Just curious how this problem is being solved. > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > Have you looked into amd (or, am-utils) ? I haven't used its failover feature, but it certainly does have it. horio shoichi