From owner-svn-doc-all@freebsd.org Sun Dec 8 14:21:39 2019 Return-Path: Delivered-To: svn-doc-all@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 539BB1E47B1; Sun, 8 Dec 2019 14:21:39 +0000 (UTC) (envelope-from bcr@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47W7mg1d42z45Ln; Sun, 8 Dec 2019 14:21:39 +0000 (UTC) (envelope-from bcr@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 330E2379E; Sun, 8 Dec 2019 14:21:39 +0000 (UTC) (envelope-from bcr@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xB8ELdTL068100; Sun, 8 Dec 2019 14:21:39 GMT (envelope-from bcr@FreeBSD.org) Received: (from bcr@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xB8ELdwV068099; Sun, 8 Dec 2019 14:21:39 GMT (envelope-from bcr@FreeBSD.org) Message-Id: <201912081421.xB8ELdwV068099@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: bcr set sender to bcr@FreeBSD.org using -f From: Benedict Reuschling Date: Sun, 8 Dec 2019 14:21:39 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r53667 - head/en_US.ISO8859-1/books/handbook/zfs X-SVN-Group: doc-head X-SVN-Commit-Author: bcr X-SVN-Commit-Paths: head/en_US.ISO8859-1/books/handbook/zfs X-SVN-Commit-Revision: 53667 X-SVN-Commit-Repository: doc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Dec 2019 14:21:39 -0000 Author: bcr Date: Sun Dec 8 14:21:38 2019 New Revision: 53667 URL: https://svnweb.freebsd.org/changeset/doc/53667 Log: Add a caution against using whole disks for zpools that are used for booting, mirrors, and RAIDZ. PR: 241956 Submitted by: pauamma@gundo.com Approved by: tsoome@ Differential Revision: https://reviews.freebsd.org/D22663 Modified: head/en_US.ISO8859-1/books/handbook/zfs/chapter.xml Modified: head/en_US.ISO8859-1/books/handbook/zfs/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/handbook/zfs/chapter.xml Sun Dec 8 10:32:49 2019 (r53666) +++ head/en_US.ISO8859-1/books/handbook/zfs/chapter.xml Sun Dec 8 14:21:38 2019 (r53667) @@ -3553,6 +3553,18 @@ vfs.zfs.vdev.cache.size="5M" a partition rather than the entire disk. This differs from recommendations made by the Solaris documentation. + + + Using an entire disk as part of a bootable + pool is strongly discouraged, as this may render + the pool unbootable. Likewise, you should not + use an entire disk as part of a mirror or + RAID-Z vdev. These are + because it it impossible to reliably determine + the size of an unpartitioned disk at boot time + and because there's no place to put in boot + code. +