Date: Mon, 25 Nov 2013 13:11:46 -0500 (EST) From: Benjamin Kaduk <kaduk@MIT.EDU> To: Warren Block <wblock@freebsd.org> Cc: svn-doc-projects@freebsd.org, doc-committers@freebsd.org Subject: Re: svn commit: r43242 - projects/zfsupdate-201307/en_US.ISO8859-1/books/handbook/zfs Message-ID: <alpine.GSO.1.10.1311251304360.27579@multics.mit.edu> In-Reply-To: <201311250558.rAP5w8LT097854@svn.freebsd.org>
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On Mon, 25 Nov 2013, Warren Block wrote: > Author: wblock > Date: Mon Nov 25 05:58:08 2013 > New Revision: 43242 > URL: http://svnweb.freebsd.org/changeset/doc/43242 > > Log: > Edits for clarity and simplicity. > > Modified: projects/zfsupdate-201307/en_US.ISO8859-1/books/handbook/zfs/chapter.xml > ============================================================================== > --- projects/zfsupdate-201307/en_US.ISO8859-1/books/handbook/zfs/chapter.xml Mon Nov 25 04:36:45 2013 (r43241) > +++ projects/zfsupdate-201307/en_US.ISO8859-1/books/handbook/zfs/chapter.xml Mon Nov 25 05:58:08 2013 (r43242) > @@ -732,10 +732,10 @@ History for 'tank': > 2013-02-27.18:51:13 [internal create txg:55] dataset = 39 > 2013-02-27.18:51:18 zfs create tank/backup</screen> > > - <para>The other more detailed history display can be invoked by > - using the <literal>-l</literal> command. This will show the > - log records in long format, which includes more information > - like the user name who issued the command and the hostname on > + <para>A more-detailed history is invoked by I do not think that "invoked" is quite the right word here; we are not calling upon the history, but rather printing it. > + adding <literal>-l</literal>. > + Log records are shown in long format, including information > + like the name of the user who issued the command and the hostname on > which the change was made.</para> > > <screen>&prompt.root; <userinput>zpool history -l</userinput> > @@ -842,55 +840,53 @@ data 288G 1.53T > <sect2 xml:id="zfs-zfs-create"> > <title>Creating & Destroying Datasets</title> > > - <para>Unlike with traditional disks and volume managers, space > - in <acronym>ZFS</acronym> is not preallocated, allowing > - additional file systems to be created at any time. With > - traditional file systems, once all of the space was > - partitioned and assigned to a file system, there was no way to > + <para>Unlike traditional disks and volume managers, space > + in <acronym>ZFS</acronym> is not preallocated. > + Wtraditional file systems, once all of the space was typo? > + partitioned and assigned, there was no way to > add an additional file system without adding a new disk. > @@ -1209,65 +1201,59 @@ tank custom:costcenter - > <para>When enabled, > <link linkend="zfs-term-deduplication">Deduplication</link> > uses the checksum of each block to detect duplicate blocks. > + When a new block is a duplicate of an existing block, > + <acronym>ZFS</acronym> writes an additional reference to > + the existing data instead of the whole duplicate block. This can offer > + tremendous space savings if the data contains many discreet s/discreet/discrete/ -Ben > + copies of the file information. Be warned: deduplication requires anhome | help
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