From owner-freebsd-fs@FreeBSD.ORG Tue Apr 9 16:22:12 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id C79D5F00 for ; Tue, 9 Apr 2013 16:22:12 +0000 (UTC) (envelope-from quartz@sneakertech.com) Received: from relay03.pair.com (relay03.pair.com [209.68.5.17]) by mx1.freebsd.org (Postfix) with SMTP id 6B6406BE for ; Tue, 9 Apr 2013 16:22:12 +0000 (UTC) Received: (qmail 1384 invoked by uid 0); 9 Apr 2013 16:22:10 -0000 Received: from 173.48.104.62 (HELO ?10.2.2.1?) (173.48.104.62) by relay03.pair.com with SMTP; 9 Apr 2013 16:22:10 -0000 X-pair-Authenticated: 173.48.104.62 Message-ID: <51644032.7070305@sneakertech.com> Date: Tue, 09 Apr 2013 12:22:10 -0400 From: Quartz User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 To: Tom Evans Subject: Re: ZFS: Failed pool causes system to hang References: <2092374421.4491514.1365459764269.JavaMail.root@k-state.edu> <5163F03B.9060700@sneakertech.com> <51640BDB.1020403@sneakertech.com> <51643F91.30704@sneakertech.com> In-Reply-To: <51643F91.30704@sneakertech.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD FS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Apr 2013 16:22:12 -0000 > I don't know the ahci/cam stack from a hole in the wall, but it seems to > me that if it can gracefully handle two drives dropping out and coming > back randomly, it ought to be able to handle three. I suppose it's > possible that zfs itself is not the root cause of the problem, but one > way or another there's some kind of interaction here, as I only > experience an issue when the pool is no longer solvent. Although, if there's some way I can definitively test to see if it's an ahci/cam issue or not, I'll be glad to try it. ______________________________________ it has a certain smooth-brained appeal