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- Journaling is not UFS specific.

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- Fix spacing that affects the display.
- Clean up the note about multiple journals.
- Note why you would want the journal on a separate disk.

Inspired by: docs/128524
This commit is contained in:
Brad Davis 2010-09-06 03:36:08 +00:00
parent db16cfa41f
commit 2e06265b64
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=36383
1 changed files with 9 additions and 12 deletions
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21
en_US.ISO8859-1/books/handbook/geom/chapter.sgml
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@ -706,11 +706,10 @@ ufsid/486b6fc16926168e N/A ad4s1f</screen>
<primary>Journaling</primary>
</indexterm>
<para>With the release of &os;&nbsp;7.0, the long awaited feature
of <acronym>UFS</acronym> journals has been implemented. The
implementation itself is provided through the
<acronym>GEOM</acronym> subsystem and is easily configured
via the &man.gjournal.8; utility.</para>
<para>With the release of &os; 7.0, the long awaited feature
of journals has been implemented. The implementation itself is
provided through the <acronym>GEOM</acronym> subsystem and is
easily configured via the &man.gjournal.8; utility.</para>
<para>What is journaling? Journaling capability stores a log of
file system transactions, i.e.: changes that make up a complete
@ -733,7 +732,7 @@ ufsid/486b6fc16926168e N/A ad4s1f</screen>
<para>To enable support for <command>gjournal</command>, the
&os; kernel must have the following option - which is the
default on 7.X systems:</para>
default on &os; 7.0 and later systems:</para>
<programlisting>options UFS_GJOURNAL</programlisting>
@ -756,7 +755,7 @@ ufsid/486b6fc16926168e N/A ad4s1f</screen>
disk:</para>
<screen>&prompt.root; <userinput>gjournal load</userinput>
&prompt.root; <userinput>gjournal label /dev/da4</userinput></screen>
&prompt.root; <userinput>gjournal label /dev/da4</userinput></screen>
<para>At this point, there should be a
<devicename>/dev/da4</devicename> device node and a
@ -766,8 +765,7 @@ ufsid/486b6fc16926168e N/A ad4s1f</screen>
<screen>&prompt.root; <userinput>newfs -O 2 -J /dev/da4.journal</userinput></screen>
<para>The previously issued command will create a
<acronym>UFS</acronym>2 file system with journaling being made
active.</para>
<acronym>UFS</acronym>2 file system on the journaled device.</para>
<para>Effectively <command>mount</command> the device at the
desired point with:</para>
@ -780,11 +778,10 @@ ufsid/486b6fc16926168e N/A ad4s1f</screen>
<devicename>ad4s1</devicename> and <devicename>ad4s2</devicename>
are both slices, then <command>gjournal</command> will create
<devicename>ad4s1.journal</devicename> and
<devicename>ad4s2.journal</devicename>. In the case of the command
being run twice, the result will be <quote>journals</quote>.</para>
<devicename>ad4s2.journal</devicename>.</para>
</note>
<para>Under some circumstances, keeping the journal on another disk
<para>For better performance, keeping the journal on another disk
may be desired. For these cases, the journal provider or storage
device should be listed after the device to enable journaling
on. Journaling may also be enabled on current file systems by