From owner-freebsd-stable@FreeBSD.ORG Thu Aug 22 07:40:59 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id BA340EF3 for ; Thu, 22 Aug 2013 07:40:59 +0000 (UTC) (envelope-from amdmiek@gmail.com) Received: from mail-wg0-x233.google.com (mail-wg0-x233.google.com [IPv6:2a00:1450:400c:c00::233]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 3E00D259A for ; Thu, 22 Aug 2013 07:40:59 +0000 (UTC) Received: by mail-wg0-f51.google.com with SMTP id a12so1254889wgh.18 for ; Thu, 22 Aug 2013 00:40:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=n/IUIksjoRo2S7Onu2TeJQ060Fc2IpGzoAAL6fpdZCw=; b=NAiCVUdHA39dsaywqyq7KpmBXWucEQm7tDyJSO9Y+uFp5kxDDPFV/ipAKS7xY8G3QD pNwasvvrjZuKtRG8f9gAoBlWpHT4wkkPv9WPDrgAGn/ADD7Qe3QGh7i0w+kUkFtoDQ/r Xtqezv/uZMbVJ0wnT0ZZ53hKO1dAR9QYUzgOCRaZe4wb8o3IEhSx+lluZy8szNh8N/GY dVFbe6YspUNuKFbBnYL7L0VtU7ToGTDdoF15qn7tiyXBdfehRUxHwvXlVsC9wBzocPDu uwvzK0GFSttVsm53tipCzxmyItPJ1CK6t1ifXeYYTxgU1NZyL/B7DI0Deh+jg4fla47U Iuug== MIME-Version: 1.0 X-Received: by 10.180.82.201 with SMTP id k9mr15023893wiy.3.1377157257473; Thu, 22 Aug 2013 00:40:57 -0700 (PDT) Received: by 10.180.208.43 with HTTP; Thu, 22 Aug 2013 00:40:57 -0700 (PDT) Date: Thu, 22 Aug 2013 11:40:57 +0400 Message-ID: Subject: ZFS pool with 4k sector size From: Michael BlackHeart To: freebsd-stable Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 22 Aug 2013 07:40:59 -0000 Hello, I'd like to know what is the best way to convert my pool from 512b sector size to 4k sector size. Hardware: 2 x2Tb WD Green with 4k physical sector size Model Family: Western Digital Caviar Green (AF, SATA 6Gb/s) Device Model: WDC WD20EARX-00PASB0 Serial Number: WD-WCAZA8280575 LU WWN Device Id: 5 0014ee 206032063 Firmware Version: 51.0AB51 User Capacity: 2 000 398 934 016 bytes [2,00 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical Device is: In smartctl database [for details use: -P show] ATA Version is: ATA8-ACS (minor revision not indicated) SATA Version is: SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s) Local Time is: Thu Aug 22 11:33:16 2013 MSK SMART support is: Available - device has SMART capability. SMART support is: Enabled They're running in a mirror pool: storage state: ONLINE scan: resilvered 48K in 0h0m with 0 errors on Thu Jul 25 19:18:01 2013 config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 ada3 ONLINE 0 0 0 ada7 ONLINE 0 0 0 zdb info storage: version: 5000 name: 'storage' state: 0 txg: 1292269 pool_guid: 18442220950447532371 hostid: 708219113 hostname: 'diablo.miekoff.local' vdev_children: 1 vdev_tree: type: 'root' id: 0 guid: 18442220950447532371 create_txg: 4 children[0]: type: 'mirror' id: 0 guid: 4289294206539029185 metaslab_array: 33 metaslab_shift: 34 ashift: 9 asize: 2000394125312 is_log: 0 create_txg: 4 children[0]: type: 'disk' id: 0 guid: 16348588566764560218 path: '/dev/ada3' phys_path: '/dev/ada3' whole_disk: 1 DTL: 95 create_txg: 4 children[1]: type: 'disk' id: 1 guid: 7655198429866445090 path: '/dev/ada7' phys_path: '/dev/ada7' whole_disk: 1 DTL: 97 create_txg: 4 features_for_read: As you see ashift is 9 (512b). I know a common solution with gnop and export-mport pool, but how should I manage mirror this way? Should I create a mirror on gnop-ed devices and then export-import?