+++ /dev/null
-<?xml version="1.0" encoding="UTF-8"?>
-<refentry id="fs_setcachesize1">
- <refmeta>
- <refentrytitle>fs setcachesize</refentrytitle>
- <manvolnum>1</manvolnum>
- </refmeta>
- <refnamediv>
- <refname>fs setcachesize</refname>
- <refpurpose>Sets the size of the disk cache</refpurpose>
- </refnamediv>
- <refsect1>
- <title>Synopsis</title>
- <para><emphasis role="bold">fs setcachesize</emphasis> [<emphasis role="bold">-blocks</emphasis> <<emphasis>size in 1K byte blocks (0 =</emphasis> reset)>>]
- [<emphasis role="bold">-reset</emphasis>] [<emphasis role="bold">-help</emphasis>]</para>
-
- <para><emphasis role="bold">fs setca</emphasis> [<emphasis role="bold">-b</emphasis> <<emphasis>size in 1K byte blocks (0 =</emphasis> reset)>>]
- [<emphasis role="bold">-r</emphasis>] [<emphasis role="bold">-h</emphasis>]</para>
-
- <para><emphasis role="bold">fs cachesize</emphasis> [<emphasis role="bold">-b</emphasis> <<emphasis>size in 1K byte blocks (0 =</emphasis> reset)>>]
- [<emphasis role="bold">-r</emphasis>] [<emphasis role="bold">-h</emphasis>]</para>
-
- <para><emphasis role="bold">fs ca</emphasis> [<emphasis role="bold">-b</emphasis> <<emphasis>size in 1K byte blocks (0 =</emphasis> reset)>>]
- [<emphasis role="bold">-r</emphasis>] [<emphasis role="bold">-h</emphasis>]</para>
-
- </refsect1>
- <refsect1>
- <title>Description</title>
- <para>The <emphasis role="bold">fs setcachesize</emphasis> command changes the number of kilobyte blocks of
- local disk space available to the Cache Manager for its data cache, on
- machines that use a disk cache. The command is not operative on machines
- that use a memory cache.</para>
-
- <para>To return the cache size to the default value specified in the third field
- of the local <replaceable>/usr/vice/etc/cacheinfo</replaceable> file, provide a value of <computeroutput>0</computeroutput> to
- the <emphasis role="bold">-blocks</emphasis> argument.</para>
-
- <para>To return the cache size to the value set when the machine was last
- rebooted, use the <emphasis role="bold">-reset</emphasis> flag instead of the <emphasis role="bold">-blocks</emphasis> argument. This
- is normally the amount specified in the <replaceable>cacheinfo</replaceable> file, unless the
- <emphasis role="bold">-blocks</emphasis> argument was included on the <emphasis role="bold">afsd</emphasis> command to override the
- <emphasis role="bold">cacheinfo</emphasis> value.</para>
-
- <para>To display the current cache size and amount of cache in use, for both
- disk and memory caches, use the <emphasis role="bold">fs getcacheparms</emphasis> command.</para>
-
- </refsect1>
- <refsect1>
- <title>Cautions</title>
- <para>This command is not operative on machines using a memory cache, and
- results in an error message. To change memory cache size, edit the
- <emphasis role="bold">cacheinfo</emphasis> file and reboot, or reboot and provide the <emphasis role="bold">-blocks</emphasis>
- argument to the <emphasis role="bold">afsd</emphasis> command.</para>
-
- <para>On machines using a disk cache, do not set the cache size to exceed 85% to
- 90% of the actual disk space available for the cache directory. The cache
- implementation itself requires a small amount of space on the partition.</para>
-
- </refsect1>
- <refsect1>
- <title>Options</title>
- <variablelist>
- <varlistentry>
- <term><emphasis role="bold">-blocks</emphasis> <<emphasis>size in 1K byte blocks</emphasis>></term>
- <listitem>
- <para>Specifies the number of one-kilobyte blocks of disk space available for
- the Cache Manager to devote to the cache. Provide a value of <computeroutput>0</computeroutput> to set
- cache size to the default specified in the <replaceable>cacheinfo</replaceable> file.</para>
-
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><emphasis role="bold">-reset</emphasis></term>
- <listitem>
- <para>Returns the cache size to the value set when the machine was last
- booted. This agrees with the value in the <replaceable>cacheinfo</replaceable> file unless the
- <emphasis role="bold">-blocks</emphasis> argument was used on the <emphasis role="bold">afsd</emphasis> command.</para>
-
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><emphasis role="bold">-help</emphasis></term>
- <listitem>
- <para>Prints the online help for this command. All other valid options are
- ignored.</para>
-
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
- <refsect1>
- <title>Examples</title>
- <para>The following command sets the disk cache size to 25000 kilobyte blocks.</para>
-
-<programlisting>
- % fs setcachesize -blocks 25000
-
-</programlisting>
- <para>Both of the following commands reset the disk cache size to the value in
- the <replaceable>cacheinfo</replaceable> file, assuming that the <emphasis role="bold">-blocks</emphasis> argument to the
- <emphasis role="bold">afsd</emphasis> command was not used.</para>
-
-<programlisting>
- % fs setcachesize -blocks 0
- % fs setcachesize -reset
-
-</programlisting>
- </refsect1>
- <refsect1>
- <title>Privilege Required</title>
- <para>The issuer must be logged in as the local superuser root.</para>
-
- </refsect1>
- <refsect1>
- <title>See Also</title>
- <para><link linkend="cacheinfo5">cacheinfo(5)</link>,
- <link linkend="afsd8">afsd(8)</link>,
- <link linkend="fs_getcacheparms1">fs_getcacheparms(1)</link></para>
-
- </refsect1>
- <refsect1>
- <title>Copyright</title>
- <para>IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.</para>
-
- <para>This documentation is covered by the IBM Public License Version 1.0. It was
- converted from HTML to POD by software written by Chas Williams and Russ
- Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.</para>
-
- </refsect1>
- </refentry>
git://git.openafs.org / openafs.git / blobdiff