[f384a9d] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[1498ead] | 7 | <!ENTITY sysstat-download-http "http://perso.wanadoo.fr/sebastien.godard/sysstat-&sysstat-version;.tar.gz">
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| 8 | <!ENTITY sysstat-download-ftp "ftp://ibiblio.org/pub/linux/system/status/sysstat-&sysstat-version;.tar.gz">
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| 9 | <!ENTITY sysstat-size "124 KB">
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[f384a9d] | 10 | <!ENTITY sysstat-buildsize "1.2 MB">
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| 11 | <!ENTITY sysstat-time ".12 SBU">
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| 12 | ]>
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| 13 |
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| 14 | <sect1 id="sysstat" xreflabel="Sysstat-&sysstat-version;">
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[a0f03b0] | 15 | <sect1info>
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[5cd0959d] | 16 | <othername>$LastChangedBy$</othername>
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| 17 | <date>$Date$</date>
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[a0f03b0] | 18 | </sect1info>
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[f384a9d] | 19 | <?dbhtml filename="sysstat.html"?>
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| 20 | <title>Sysstat-&sysstat-version;</title>
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| 21 |
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| 22 | <sect2>
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| 23 | <title>Introduction to <application>Sysstat</application></title>
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| 24 |
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| 25 | <para>The <application>Sysstat</application> package contains utilities to
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| 26 | monitor system performance and usage activity.
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| 27 | <application>Sysstat</application> contains the <command>sar</command> utility,
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[1498ead] | 28 | common to many commercial Unixes, and tools you can schedule via cron to
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| 29 | collect and historize performance and activity data.</para>
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[f384a9d] | 30 |
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| 31 | <sect3><title>Package information</title>
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| 32 | <itemizedlist spacing='compact'>
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| 33 | <listitem><para>Download (HTTP): <ulink url="&sysstat-download-http;"/></para></listitem>
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| 34 | <listitem><para>Download (FTP): <ulink url="&sysstat-download-ftp;"/></para></listitem>
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| 35 | <listitem><para>Download size: &sysstat-size;</para></listitem>
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| 36 | <listitem><para>Estimated Disk space required: &sysstat-buildsize;</para></listitem>
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| 37 | <listitem><para>Estimated build time: &sysstat-time;</para></listitem></itemizedlist>
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| 38 | </sect3>
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| 39 |
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| 40 | <sect3><title><application>Sysstat</application> dependencies</title>
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| 41 | <sect4><title>Recommended</title>
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| 42 | <para><xref linkend="fcron"/></para></sect4>
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| 43 | </sect3>
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| 44 |
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| 45 | </sect2>
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| 46 |
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| 47 | <sect2>
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| 48 | <title>Installation of <application>Sysstat</application></title>
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| 49 |
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| 50 | <para>Install <application>Sysstat</application> by running the
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| 51 | following commands:</para>
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| 52 |
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| 53 | <screen><userinput><command>make config &&
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| 54 | make &&
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| 55 | make install</command></userinput></screen>
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| 56 |
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| 57 | </sect2>
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| 58 |
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| 59 | <sect2>
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| 60 | <title>Command explanations</title>
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| 61 |
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| 62 | <para><command>make config</command>: Runs the interactive configuration
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| 63 | process. The first question prompts you for an "Installation directory".
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| 64 | Reply with <filename class="directory">/usr</filename>, as this is equivalent
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| 65 | to <application>Autoconf</application>'s <parameter>--prefix=/usr</parameter>
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| 66 | parameter to <command>configure</command>. For all other prompts, you may
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| 67 | press <command>Enter</command> to accept the (very sane) defaults.</para>
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| 68 |
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| 69 | </sect2>
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| 70 |
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| 71 | <sect2>
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| 72 | <title>Configuring <application>Sysstat</application></title>
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| 73 |
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| 74 | <sect3><title>Cron information</title>
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| 75 |
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[1498ead] | 76 | <para>To begin gathering <application>Sysstat</application> history
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| 77 | information, you must add to, or create a privileged user's crontab. The
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| 78 | default history data location is
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| 79 | <filename class="directory">/var/log/sa</filename>. The user running
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| 80 | <application>Sysstat</application> utilities via cron must have write
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[f384a9d] | 81 | access to this location.</para>
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| 82 |
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| 83 | <para>Below is an example of what to install in the crontab. Adjust the
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| 84 | parameters to suit your needs. Use <command>man sa1</command> and
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| 85 | <command>man sa2</command> for information about the commands.</para>
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| 86 |
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| 87 | <screen><userinput># 8am-7pm activity reports every 10 minutes during weekdays
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| 88 | 0 8-18 * * 1-5 /usr/lib/sa/sa1 600 6 &
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| 89 |
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| 90 | # 7pm-8am activity reports every hour during weekdays
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| 91 | 0 19-7 * * 1-5 /usr/lib/sa/sa1 &
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| 92 |
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| 93 | # Activity reports every hour on Saturday and Sunday
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| 94 | 0 * * * 0,6 /usr/lib/sa/sa1 &
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| 95 |
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| 96 | # Daily summary prepared at 19:05
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| 97 | 5 19 * * * /usr/lib/sa/sa2 -A &</userinput></screen>
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| 98 |
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| 99 | <para>Ensure you submit the revised crontab to the cron daemon.</para>
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| 100 | </sect3>
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| 101 |
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[02912d44] | 102 | <sect3><title>System startup information</title>
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[f384a9d] | 103 |
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| 104 | <para>At system startup, a LINUX RESTART message must be inserted in the daily
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[02912d44] | 105 | data file to reinitialize the kernel counters. This can be automated by
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| 106 | installing the <filename>/etc/rc.d/init.d/sysstat</filename> init script
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| 107 | included in the <xref linkend="intro-important-bootscripts"/> package using
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| 108 | the following command:</para>
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| 109 | <screen><userinput><command>make install-sysstat</command></userinput></screen>
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[f384a9d] | 110 | </sect3>
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| 111 |
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| 112 | </sect2>
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| 113 |
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| 114 | <sect2>
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| 115 | <title>Contents</title>
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| 116 |
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| 117 | <para>The <application>Sysstat</application> package contains
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| 118 | <command>iostat</command>,
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| 119 | <command>mpstat</command>,
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| 120 | <command>sar</command>,
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| 121 | <filename>sa1</filename>,
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| 122 | <filename>sa2</filename> and
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| 123 | <filename>sadc</filename>.</para>
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| 124 |
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| 125 | </sect2>
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| 126 |
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| 127 | <sect2><title>Description</title>
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| 128 |
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| 129 | <sect3><title>iostat</title>
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| 130 | <para><command>iostat</command> reports <acronym>CPU</acronym> statistics and
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| 131 | input/output statistics for devices and partitions.</para></sect3>
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| 132 |
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| 133 | <sect3><title>mpstat</title>
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| 134 | <para><command>mpstat</command> reports individual or combined processor
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| 135 | related statistics.</para></sect3>
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| 136 |
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| 137 | <sect3><title>sar</title>
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| 138 | <para><command>sar</command> collects, reports and saves system activity
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| 139 | information.</para></sect3>
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| 140 |
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| 141 | <sect3><title>sa1</title>
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| 142 | <para><filename>sa1</filename> collects and stores binary data in the system
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| 143 | activity daily data file. It is a front end to <filename>sadc</filename>
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| 144 | designed to be run from cron.</para></sect3>
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| 145 |
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| 146 | <sect3><title>sa2</title>
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| 147 | <para><filename>sa2</filename> writes a summarized daily activity report. It
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| 148 | is a front end to <command>sar</command> designed to be run from
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| 149 | cron.</para></sect3>
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| 150 |
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| 151 | <sect3><title>sadc</title>
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| 152 | <para><filename>sadc</filename> is the system activity data collector, used as
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| 153 | a backend for <command>sar</command>.</para></sect3>
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| 154 |
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| 155 | </sect2>
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| 156 |
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| 157 | </sect1>
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