From owner-freebsd-stable@FreeBSD.ORG Thu Apr 19 10:03:28 2007 Return-Path: X-Original-To: stable@freebsd.org Delivered-To: freebsd-stable@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 68F6316A401 for ; Thu, 19 Apr 2007 10:03:28 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from mail.ticketswitch.com (mail.ticketswitch.com [194.200.93.188]) by mx1.freebsd.org (Postfix) with ESMTP id 8D34E13C44C for ; Thu, 19 Apr 2007 10:03:27 +0000 (UTC) (envelope-from petefrench@ticketswitch.com) Received: from [172.16.1.6] (helo=dilbert.ticketswitch.com) by mail.ticketswitch.com with esmtp (Exim 4.60 (FreeBSD)) (envelope-from ) id 1HeTFS-0006a3-1B for stable@freebsd.org; Thu, 19 Apr 2007 10:48:18 +0100 Received: from petefrench by dilbert.ticketswitch.com with local (Exim 4.66 (FreeBSD)) (envelope-from ) id 1HeTFQ-0009lC-DQ for stable@freebsd.org; Thu, 19 Apr 2007 10:48:16 +0100 To: stable@freebsd.org Message-Id: From: Pete French Date: Thu, 19 Apr 2007 10:48:16 +0100 Cc: Subject: iscsi and geom mirror - stupid idea or not ? 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: Thu, 19 Apr 2007 10:03:28 -0000 what would happen if I made a machine which contained a mirrored geom pair consiting of one local driive and one drive accessed via iscsi on a remote machine ? would this work ? what I am considering is two such machines, geographicly distinct. one is a 'master' and boots off the mirrored drive, the other is a slave and has a separate boot drive which just rngs FreeBSD to make the drive inside it into an iscsi target for the first machine. The idea here is if the first machine is catastrphicly killed (like building falls down on it or something) then the second one can be rebooted from the internal drive, and will hence become the first one. It's basically a way of making a standby machine in case of disaster. I havent really looked at iSCSI until recently, and this is just one of the ideas I came up with looking at the possibilities. -pcf.