From owner-freebsd-questions@FreeBSD.ORG Wed Jun 17 19:40:22 2015 Return-Path: Delivered-To: freebsd-questions@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 0C335B85 for ; Wed, 17 Jun 2015 19:40:22 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id BE80E61C for ; Wed, 17 Jun 2015 19:40:21 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Z5IxP-0004Ex-EB for freebsd-questions@freebsd.org; Wed, 17 Jun 2015 21:25:07 +0200 Received: from pool-72-66-1-32.washdc.fios.verizon.net ([72.66.1.32]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 17 Jun 2015 21:25:07 +0200 Received: from nightrecon by pool-72-66-1-32.washdc.fios.verizon.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 17 Jun 2015 21:25:07 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: Michael Powell Subject: Re: ZFS passdevgonecb Date: Wed, 17 Jun 2015 15:24:51 -0400 Lines: 39 Message-ID: References: <557F90DB.80601@herveybayaustralia.com.au> Reply-To: nightrecon@hotmail.com Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: pool-72-66-1-32.washdc.fios.verizon.net X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Jun 2015 19:40:22 -0000 Da Rock wrote: > I hate jumping in like this out of the blue, but time is not on my side > atm with a lot going on. > > I have a problem with some devices disappearing on various versions of > FreeBSD and machines (laptops, workstations/servers). Umass are the > norm, with the message occurring most on usb sticks and sd cards. > > Big problem atm is that my file server has a failed disk in the raid, > and I've tried replacing it with a new drive (twice now), and both times > it begins to resilver and then it is "REMOVED". If I online it again, it > goes for about 10mins then REMOVED again. > > Dmesg shows that the device is removed from the devfs with a > passdevgonecb/lost device message. This apparently occurs right at boot > too, as it shows amongst the usual scrolling during boot. > > I had a chat with someone and they mentioned the cable and/or controller > could be the issue. Could anyone add any insight or tests I could do? > I'm not exactly claim to be an expert at zfs, so maybe something might > need addressing there too. > > I'd particularly appreciate a means of testing the controller. > > ATM the main theory is to replace the board - not a happy thought! :/ > Another item to consider, even if only to exclude it, is: what kind of drives are these? Are they server RAID certified or are they 'consumer' desktop types. RAID certified are designed to time-limit attempts at error recovery. There is a window in time that if a consumer drive takes too long at internal ECC the controller will drop it. Doubt this is your case, I bet you have server drives. I just mention it because using consumer desktop drives on RAID controllers can sometimes be problematic. -Mike