From owner-svn-src-all@freebsd.org Wed Oct 9 11:34:16 2019 Return-Path: Delivered-To: svn-src-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 BCC3C14933A; Wed, 9 Oct 2019 11:34:16 +0000 (UTC) (envelope-from avg@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 46pBvD4Ydkz4Htn; Wed, 9 Oct 2019 11:34:16 +0000 (UTC) (envelope-from avg@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 80EEEFE2B; Wed, 9 Oct 2019 11:34:16 +0000 (UTC) (envelope-from avg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x99BYGJ0088253; Wed, 9 Oct 2019 11:34:16 GMT (envelope-from avg@FreeBSD.org) Received: (from avg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x99BYG5h088252; Wed, 9 Oct 2019 11:34:16 GMT (envelope-from avg@FreeBSD.org) Message-Id: <201910091134.x99BYG5h088252@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: avg set sender to avg@FreeBSD.org using -f From: Andriy Gapon Date: Wed, 9 Oct 2019 11:34:16 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r353341 - head/cddl/contrib/opensolaris/cmd/zpool X-SVN-Group: head X-SVN-Commit-Author: avg X-SVN-Commit-Paths: head/cddl/contrib/opensolaris/cmd/zpool X-SVN-Commit-Revision: 353341 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Oct 2019 11:34:16 -0000 Author: avg Date: Wed Oct 9 11:34:16 2019 New Revision: 353341 URL: https://svnweb.freebsd.org/changeset/base/353341 Log: zfs: document large_dnode feature The text is copied from illumos. The conversion to mdoc is mine. The FreeBSD boot warning is copied from large_block description. MFC after: 4 days Modified: head/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 Modified: head/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 ============================================================================== --- head/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 Wed Oct 9 11:26:36 2019 (r353340) +++ head/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 Wed Oct 9 11:34:16 2019 (r353341) @@ -527,6 +527,36 @@ Please note that booting from datasets that have recor supported by the .Fx boot loader. +.It Sy large_dnode +.Bl -column "READ\-ONLY COMPATIBLE" "org.zfsonlinux:large_dnode" +.It GUID Ta org.zfsonlinux:large_dnode +.It READ\-ONLY COMPATIBLE Ta no +.It DEPENDENCIES Ta extensible_dataset +.El +.Pp +The +.Sy large_dnode +feature allows the size of dnodes in a dataset to be set larger than 512B. +.Pp +This feature becomes +.Sy active +once a dataset contains an object with a dnode larger than 512B, +which occurs as a result of setting the +.Sy dnodesize +dataset property to a value other than +.Sy legacy . +The feature will return to being +.Sy enabled +once all filesystems that have ever contained a dnode larger than 512B are +destroyed. +Large dnodes allow more data to be stored in the bonus buffer, thus potentially +improving performance by avoiding the use of spill blocks. +.Pp +Please note that booting from datasets that have dnodes larger than 512B is +.Em NOT +supported by the +.Fx +boot loader. .It Sy sha512 .Bl -column "READ\-ONLY COMPATIBLE" "org.illumos:sha512" .It GUID Ta org.illumos:sha512