From owner-freebsd-questions@FreeBSD.ORG Sun Feb 15 01:21:22 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 C7B8516A4E5 for ; Sun, 15 Feb 2004 01:21:22 -0800 (PST) Received: from ss10.danlan.com (ss10.danlan.com [199.33.144.62]) by mx1.FreeBSD.org (Postfix) with ESMTP id D005743D1F for ; Sun, 15 Feb 2004 01:21:21 -0800 (PST) (envelope-from ddl@danlan.com) Received: (from ddl@localhost) by ss10.danlan.com (8.9.3/8.9.3) id EAA16250 for freebsd-questions@freebsd.org; Sun, 15 Feb 2004 04:21:20 -0500 (EST) Date: Sun, 15 Feb 2004 04:21:20 -0500 (EST) From: Dan Lanciani Message-Id: <200402150921.EAA16250@ss10.danlan.com> To: freebsd-questions@freebsd.org Subject: mirror RAID consistency 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: Sun, 15 Feb 2004 09:21:22 -0000 Is there any provision to automatically degrade a mirror RAID array (in particular, a software array constructed with atacontrol) when the individual members may have become inconsistent due to a crash or power failure? I know it would be a layer-crossing hack, but if there is a file system present, would peeking at the superblock's clean flag on each member and degrading if any aren't set be sufficient? Dan Lanciani ddl@danlan.*com