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HTML
80 lines
4.7 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 4//EN">
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<HTML><HEAD>
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<TITLE>Administration Reference</TITLE>
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<!-- Workbench Version (AIX) on 3 Oct 2000 at 16:18:30 -->
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<META HTTP-EQUIV="updated" CONTENT="Tue, 03 Oct 2000 16:18:29">
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<META HTTP-EQUIV="review" CONTENT="Wed, 03 Oct 2001 16:18:29">
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</HEAD><BODY>
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<!-- (C) IBM Corporation 2000. All Rights Reserved -->
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<A NAME="Top_Of_Page"></A>
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<H1>Administration Reference</H1>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf042.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Bot_Of_Page"><IMG SRC="../bot.gif" BORDER="0" ALT="[Bottom of Topic]"></A> <A HREF="auarf044.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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<P>
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<H2><A NAME="HDRCACHEINFO" HREF="auarf002.htm#ToC_41">cacheinfo</A></H2>
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<P><STRONG>Purpose</STRONG>
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<P>Defines configuration parameters for the Cache Manager
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<P><STRONG>Description</STRONG>
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<P>The <B>cacheinfo</B> file defines configuration parameters for the
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Cache Manager, which reads the file as it initializes.
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<P>The file contains a single line of ASCII text and must reside in the
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<B>/usr/vice/etc</B> directory. Use a text editor to create it
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during initial configuration of the client machine; the required format
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is as follows:
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<PRE> <VAR>mount_dir</VAR>:<VAR>cache_dir</VAR>:<VAR>cache_size</VAR>
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</PRE>
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<P>where
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<DL>
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<P><DT><B><VAR>mount_dir</VAR>
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</B><DD>Names the local disk directory at which the Cache Manager mounts the AFS
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namespace. It must exist before the <B>afsd</B> program
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runs. The conventional value is <B>/afs</B>. Using any other
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value prevents traversal of pathnames that begin with <B>/afs</B> (such as
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pathnames to files in foreign cells that do use the conventional name).
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The <B>-mountdir</B> argument to the <B>afsd</B> command overrides
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this value.
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<P><DT><B><VAR>cache_dir</VAR>
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</B><DD>Names the local disk directory to use as a cache. It must exist
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before the <B>afsd</B> program runs. The standard value is
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<B>/usr/vice/cache</B>, but it is acceptable to substitute a directory on
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a partition with more available space. Although the Cache Manager
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ignores this field when configuring a memory cache, a value must always appear
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in it. The <B>-cachedir</B> argument to the <B>afsd</B> command
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overrides this value.
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<P><DT><B><VAR>cache_size</VAR>
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</B><DD>Specifies the cache size as a number of 1-kilobyte blocks. Larger
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caches generally yield better performance, but a disk cache must not exceed
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90% of the space available on the cache partition (85% for AIX systems), and a
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memory cache must use no more than 25% of available machine memory.
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<P>The <B>-blocks</B> argument to the <B>afsd</B> command overrides
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this value. To reset cache size without rebooting on a machine that
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uses disk caching, use the <B>fs setcachesize</B> command. To
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display the current size of a disk or memory cache between reboots, use the
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<B>fs getcacheparms</B> command.
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</DL>
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<P><STRONG>Examples</STRONG>
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<P>The following example <B>cacheinfo</B> file mounts the AFS namespace at
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<B>/afs</B>, establishes a disk cache in the <B>/usr/vice/cache</B>
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directory, and defines cache size as 50,000 1-kilobyte blocks.
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<PRE> /afs:/usr/vice/cache:50000
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</PRE>
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<P><STRONG>Related Information</STRONG>
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<P><A HREF="auarf058.htm#HDRAFSD">afsd</A>
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<P><A HREF="auarf143.htm#HDRFS_GETCACHEPARMS">fs getcacheparms</A>
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<P><A HREF="auarf158.htm#HDRFS_SETCACHESIZE">fs setcachesize</A>
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<P>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf042.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Top_Of_Page"><IMG SRC="../top.gif" BORDER="0" ALT="[Top of Topic]"></A> <A HREF="auarf044.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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<P><HR><B>
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<br>© <A HREF="http://www.ibm.com/">IBM Corporation 2000.</A> All Rights Reserved
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