From owner-freebsd-stable@FreeBSD.ORG Sun Mar 22 14:58:02 2009 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 AFBBF106566B for ; Sun, 22 Mar 2009 14:58:02 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from constantine.ticketswitch.com (constantine.ticketswitch.com [IPv6:2002:57e0:1d4e:1::3]) by mx1.freebsd.org (Postfix) with ESMTP id 7631E8FC08 for ; Sun, 22 Mar 2009 14:58:02 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from dilbert.rattatosk ([10.64.50.6] helo=dilbert.ticketswitch.com) by constantine.ticketswitch.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.69 (FreeBSD)) (envelope-from ) id 1LlP7b-00073c-EH; Sun, 22 Mar 2009 14:57:55 +0000 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.69 (FreeBSD)) (envelope-from ) id 1LlP7b-000OqQ-CW; Sun, 22 Mar 2009 14:57:55 +0000 To: freebsd-stable@freebsd.org, uspoerlein@gmail.com In-Reply-To: <20090322090740.GA1519@roadrunner.spoerlein.net> Message-Id: From: Pete French Date: Sun, 22 Mar 2009 14:57:55 +0000 Cc: Subject: Re: gemor mirror and priority 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: Sun, 22 Mar 2009 14:58:03 -0000 > I did this for 2-3 years and it has worked very well. Of course I took > care of using the right priorities from the start. This setup has now > been replaced by a ZFS mirror. The resilver time is just so much better :) How do you find ZFS performance in an asymetric mirror, and does it seem to cope OK if the remote disc fails ? One of the reaons I have stuck with gmirror is that it seems extremely tolerant to having one of the drives vanish from underneath it (as sometimes happens with a remote disc). When I experimented doing this with ZFS I found that it did not work well at all (lock ups until the disc I had taken away came back). -pete.