From owner-freebsd-fs@FreeBSD.ORG Tue May 1 21:04:29 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D4F6910657EB for ; Tue, 1 May 2012 21:04:29 +0000 (UTC) (envelope-from simon@optinet.com) Received: from cobra.acceleratedweb.net (cobra-gw.acceleratedweb.net [207.99.79.37]) by mx1.freebsd.org (Postfix) with SMTP id 63D0D8FC12 for ; Tue, 1 May 2012 21:04:29 +0000 (UTC) Received: (qmail 78965 invoked by uid 110); 1 May 2012 20:57:46 -0000 Received: from ool-4571afe7.dyn.optonline.net (HELO desktop1) (simon@optinet.com@69.113.175.231) by cobra.acceleratedweb.net with SMTP; 1 May 2012 20:57:46 -0000 From: "Simon" To: "freebsd-fs@freebsd.org" Date: Tue, 01 May 2012 16:57:40 -0400 Priority: Normal X-Mailer: PMMail 2000 Professional (2.20.2717) For Windows 2000 (5.1.2600;3) MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <20120501210429.D4F6910657EB@hub.freebsd.org> Subject: Replacing dead drives in ZRAID2 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 May 2012 21:04:29 -0000 Hello, I decided to give ZFS ZRAID2 a shot after getting fed up with some legacy hardware RAID cards that don't properly perform, or at all, patrol-reads + consistency checking. So... I can't seem to figure out the proper way to replace a dead drive in a running system with SCSI+SES enclosure. I tried: zpool detach zroot baddrive camcontrol stop baddrive At this point when I pull the drive out, I get bus reset errors, etc... I will go into details after someone confirms whether the above 2 steps suffice to pull a dead/malfunctioning drive out from SES enclosure or am I missing something? I tried to simulate drive failure by pulling 2 out of 3 ZRAID2 drives. The first drive pull went smoothly. System noticed drive disconnected and stopped using it. The 2nd drive pull resulted in bunch of errors and system froze completely. I can't pull 2 drives out in ZRAID2 system and expect the machine to continue to function? what am I missing :\ PS: I couldn't find dedicated FreeBSD ZFS email list, is there one? Thank you very much! Simon