From owner-freebsd-questions@freebsd.org Fri Feb 28 13:52:10 2020 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id E38F42635FE for ; Fri, 28 Feb 2020 13:52:10 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from mx32.harte-lyne.ca (mx32.harte-lyne.ca [216.185.71.32]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mx32.harte-lyne.ca", Issuer "CA_HLL_ISSUER_2016" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 48TWDn1fbRz41Kb for ; Fri, 28 Feb 2020 13:52:08 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from mx32.harte-lyne.ca (localhost [127.0.32.1]) by mx32.harte-lyne.ca (Postfix) with ESMTP id 371423CDFF for ; Fri, 28 Feb 2020 08:52:08 -0500 (EST) X-Virus-Scanned: amavisd-new at harte-lyne.ca Received: from mx32.harte-lyne.ca ([127.0.32.1]) by mx32.harte-lyne.ca (mx32.harte-lyne.ca [127.0.32.1]) (amavisd-new, port 10024) with ESMTP id k3bhGQLsBOSs for ; Fri, 28 Feb 2020 08:51:40 -0500 (EST) Received: from webmail.harte-lyne.ca (webmail.hamilton.harte-lyne.ca [216.185.71.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx32.harte-lyne.ca (Postfix) with ESMTPSA id 5EF2B3CDF4 for ; Fri, 28 Feb 2020 08:51:40 -0500 (EST) Received: from 216.185.71.44 (SquirrelMail authenticated user byrnejb_hll) by webmail.harte-lyne.ca with HTTP; Fri, 28 Feb 2020 08:51:39 -0500 Message-ID: Date: Fri, 28 Feb 2020 08:51:39 -0500 Subject: ZFS i/o error on boot unable to start system From: "James B. Byrne" To: freebsd-questions@freebsd.org Reply-To: byrnejb@harte-lyne.ca User-Agent: SquirrelMail/1.4.23 [SVN] MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-Rspamd-Queue-Id: 48TWDn1fbRz41Kb X-Spamd-Bar: -------- X-Spamd-Result: default: False [-8.47 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; HAS_REPLYTO(0.00)[byrnejb@harte-lyne.ca]; R_SPF_ALLOW(-0.20)[+ip4:216.185.71.0/26]; TO_DN_NONE(0.00)[]; RCVD_DKIM_ARC_DNSWL_MED(-0.50)[]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCVD_IN_DNSWL_MED(-0.20)[32.71.185.216.list.dnswl.org : 127.0.4.2]; DKIM_TRACE(0.00)[harte-lyne.ca:+]; HAS_X_PRIO_THREE(0.00)[3]; DMARC_POLICY_ALLOW(-0.50)[harte-lyne.ca,quarantine]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:12021, ipnet:216.185.64.0/20, country:CA]; IP_SCORE(-3.77)[ip: (-9.90), ipnet: 216.185.64.0/20(-4.94), asn: 12021(-3.95), country: CA(-0.09)]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_DKIM_ALLOW(-0.20)[harte-lyne.ca:s=dkim_hll]; RCVD_COUNT_FIVE(0.00)[5]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; DWL_DNSWL_LOW(-1.00)[harte-lyne.ca.dwl.dnswl.org : 127.0.4.1] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Feb 2020 13:52:11 -0000 I have reported this on the forums as well. FreeBSD-12.1p2 raidz2 on 4x8TB HDD (reds) root on zfs We did a hot restart of this host this morning and received the following on the console: ZFS: i/o error - all block copies unavailable ZFS: failed to read pool zroot directory object qptzfsboot: failed to mount default pool zroot FreeBSD/x86 boot ZFS: i/o error - all block copies unavailable ZFS: can't fild dataset 0 Default: zroot/<0x0> boot: What has happened? How do I get this system back up and online? My first thought is that in modifying rc.conf to change some ip4 address assignments that I may have done something else inadvertently which has caused this. I cannot think of any other changes made since the system was last restarted a noon yesterday. ​This is an urgent matter. Any help is gratefully welcomed. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3