[f384a9d] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[ff769b8c] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[f384a9d] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[155d664f] | 7 | <!ENTITY sysstat-download-http "http://perso.wanadoo.fr/sebastien.godard/sysstat-&sysstat-version;.tar.bz2">
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| 8 | <!ENTITY sysstat-download-ftp "ftp://ibiblio.org/pub/linux/system/status/sysstat-&sysstat-version;.tar.bz2">
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| 9 | <!ENTITY sysstat-md5sum "075488cbb5979deec0ab05f3ca0c8d12">
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| 10 | <!ENTITY sysstat-size "118 KB">
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| 11 | <!ENTITY sysstat-buildsize "1.88 MB">
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| 12 | <!ENTITY sysstat-time "0.04 SBU">
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[f384a9d] | 13 | ]>
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| 14 |
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| 15 | <sect1 id="sysstat" xreflabel="Sysstat-&sysstat-version;">
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[eb2cf83a] | 16 | <?dbhtml filename="sysstat.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>Sysstat-&sysstat-version;</title>
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| 24 |
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| 25 | <indexterm zone="sysstat">
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| 26 | <primary sortas="a-Sysstat">Sysstat</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to Sysstat</title>
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| 31 |
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| 32 | <para>The <application>Sysstat</application> package contains utilities
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| 33 | to monitor system performance and usage activity.
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| 34 | <application>Sysstat</application> contains the <command>sar</command>
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| 35 | utility, common to many commercial Unixes, and tools you can schedule via
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| 36 | cron to collect and historize performance and activity data.</para>
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| 37 |
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| 38 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 39 | <itemizedlist spacing="compact">
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| 40 | <listitem>
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| 41 | <para>Download (HTTP): <ulink url="&sysstat-download-http;"/></para>
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| 42 | </listitem>
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| 43 | <listitem>
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| 44 | <para>Download (FTP): <ulink url="&sysstat-download-ftp;"/></para>
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| 45 | </listitem>
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| 46 | <listitem>
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| 47 | <para>Download MD5 sum: &sysstat-md5sum;</para>
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| 48 | </listitem>
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| 49 | <listitem>
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| 50 | <para>Download size: &sysstat-size;</para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>Estimated disk space required: &sysstat-buildsize;</para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>Estimated build time: &sysstat-time;</para>
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| 57 | </listitem>
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| 58 | </itemizedlist>
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| 59 |
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| 60 | <bridgehead renderas="sect3">Sysstat Dependencies</bridgehead>
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| 61 |
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| 62 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 63 | <para><xref linkend="fcron"/></para>
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| 64 |
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| 65 | </sect2>
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| 66 |
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| 67 | <sect2 role="installation">
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| 68 | <title>Installation of Sysstat</title>
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| 69 |
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| 70 | <para>Install <application>Sysstat</application> by running the
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| 71 | following commands:</para>
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| 72 |
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| 73 | <screen><userinput>make config &&
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| 74 | make</userinput></screen>
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| 75 |
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| 76 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 77 |
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| 78 | <screen role="root"><userinput>make install</userinput></screen>
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| 79 |
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| 80 | </sect2>
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| 81 |
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| 82 | <sect2 role="commands">
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| 83 | <title>Command Explanations</title>
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| 84 |
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| 85 | <para><command>make config</command>: Runs the interactive configuration
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| 86 | process. The first question prompts you for an
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| 87 | <quote><computeroutput>Installation directory</computeroutput></quote>.
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| 88 | Reply with <filename class="directory">/usr</filename>, as this is equivalent to
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| 89 | <application>Autoconf</application>'s <option>--prefix=/usr</option> parameter
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| 90 | to <command>configure</command>. For all other prompts, you may
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| 91 | press <keycap>Enter</keycap> to accept the (very sane) defaults. When
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| 92 | prompted for <quote><computeroutput>Number of daily data files to keep:
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| 93 | [7]</computeroutput></quote>, you may wish to keep a larger number of files.
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| 94 | However, don't exceed 25 because <application>Sysstat</application> will
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| 95 | resuse existing files the next month, leading to erroneous daily reports.</para>
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| 96 |
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| 97 | </sect2>
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| 98 |
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| 99 | <sect2 role="configuration">
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| 100 | <title>Configuring Sysstat</title>
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| 101 |
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| 102 | <sect3>
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| 103 | <title>Cron Information</title>
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| 104 |
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| 105 | <para>To begin gathering <application>Sysstat</application> history
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| 106 | information, you must add to, or create a privileged user's crontab. The
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| 107 | default history data location is
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| 108 | <filename class="directory">/var/log/sa</filename>. The user running
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| 109 | <application>Sysstat</application> utilities via cron must have write
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| 110 | access to this location.</para>
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| 111 |
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| 112 | <para>Below is an example of what to install in the crontab. Adjust the
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| 113 | parameters to suit your needs. Use <command>man sa1</command> and
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| 114 | <command>man sa2</command> for information about the commands.</para>
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| 115 |
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| 116 | <screen><literal># 8am-7pm activity reports every 10 minutes during weekdays
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[f384a9d] | 117 | 0 8-18 * * 1-5 /usr/lib/sa/sa1 600 6 &
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| 118 |
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| 119 | # 7pm-8am activity reports every hour during weekdays
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| 120 | 0 19-7 * * 1-5 /usr/lib/sa/sa1 &
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| 121 |
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| 122 | # Activity reports every hour on Saturday and Sunday
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| 123 | 0 * * * 0,6 /usr/lib/sa/sa1 &
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| 124 |
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| 125 | # Daily summary prepared at 19:05
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[eb2cf83a] | 126 | 5 19 * * * /usr/lib/sa/sa2 -A &</literal></screen>
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| 127 |
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| 128 | <para>Ensure you submit the revised crontab to the cron daemon.</para>
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| 129 |
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| 130 | </sect3>
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| 131 |
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| 132 | <sect3 id="sysstat-init">
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| 133 | <title>System Startup Information</title>
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| 134 |
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| 135 | <indexterm zone="sysstat sysstat-init">
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| 136 | <primary sortas="f-sysstat">sysstat</primary>
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| 137 | </indexterm>
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| 138 |
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| 139 | <para>At system startup, a LINUX RESTART message must be inserted in the daily
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| 140 | data file to reinitialize the kernel counters. This can be automated by
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| 141 | installing the <filename>/etc/rc.d/init.d/sysstat</filename> init script
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| 142 | included in the <xref linkend="intro-important-bootscripts"/> package using
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| 143 | the following command:</para>
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| 144 |
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| 145 | <screen role="root"><userinput>make install-sysstat</userinput></screen>
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| 146 |
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| 147 | </sect3>
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| 148 |
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| 149 | </sect2>
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| 150 |
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| 151 | <sect2 role="content">
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| 152 | <title>Contents</title>
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| 153 |
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| 154 | <segmentedlist>
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| 155 | <segtitle>Installed Programs</segtitle>
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| 156 | <segtitle>Installed Libraries</segtitle>
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| 157 | <segtitle>Installed Directories</segtitle>
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| 158 |
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| 159 | <seglistitem>
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| 160 | <seg>iostat, mpstat, sar, sa1, sa2, and sadc</seg>
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| 161 | <seg>None</seg>
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| 162 | <seg>/usr/lib/sa and /var/log/sa</seg>
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| 163 | </seglistitem>
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| 164 | </segmentedlist>
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| 165 |
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| 166 | <variablelist>
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| 167 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 168 | <?dbfo list-presentation="list"?>
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| 169 | <?dbhtml list-presentation="table"?>
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| 170 |
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| 171 | <varlistentry id="iostat">
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| 172 | <term><command>iostat</command></term>
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| 173 | <listitem>
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| 174 | <para>reports <acronym>CPU</acronym> statistics and input/output
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| 175 | statistics for devices and partitions.</para>
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| 176 | <indexterm zone="sysstat iostat">
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| 177 | <primary sortas="b-iostat">iostat</primary>
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| 178 | </indexterm>
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| 179 | </listitem>
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| 180 | </varlistentry>
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| 181 |
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| 182 | <varlistentry id="mpstat">
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| 183 | <term><command>mpstat</command></term>
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| 184 | <listitem>
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| 185 | <para>reports individual or combined processor related statistics.</para>
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| 186 | <indexterm zone="sysstat mpstat">
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| 187 | <primary sortas="b-mpstat">mpstat</primary>
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| 188 | </indexterm>
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| 189 | </listitem>
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| 190 | </varlistentry>
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| 191 |
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| 192 | <varlistentry id="sar">
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| 193 | <term><command>sar</command></term>
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| 194 | <listitem>
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| 195 | <para> collects, reports and saves system activity information.</para>
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| 196 | <indexterm zone="sysstat sar">
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| 197 | <primary sortas="b-sar">sar</primary>
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| 198 | </indexterm>
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| 199 | </listitem>
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| 200 | </varlistentry>
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| 201 |
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| 202 | <varlistentry id="sa1">
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| 203 | <term><command>sa1</command></term>
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| 204 | <listitem>
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| 205 | <para>collects and stores binary data in the system activity daily
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| 206 | data file. It is a front end to <filename>sadc</filename> designed to be run
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| 207 | from cron.</para>
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| 208 | <indexterm zone="sysstat sa1">
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| 209 | <primary sortas="b-sa1">sa1</primary>
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| 210 | </indexterm>
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| 211 | </listitem>
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| 212 | </varlistentry>
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| 213 |
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| 214 | <varlistentry id="sa2">
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| 215 | <term><command>sa2</command></term>
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| 216 | <listitem>
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| 217 | <para>writes a summarized daily activity report. It is a front end
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| 218 | to <command>sar</command> designed to be run from cron.</para>
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| 219 | <indexterm zone="sysstat sa2">
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| 220 | <primary sortas="b-sa2">sa2</primary>
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| 221 | </indexterm>
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| 222 | </listitem>
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| 223 | </varlistentry>
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| 224 |
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| 225 | <varlistentry id="sadc">
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| 226 | <term><command>sadc</command></term>
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| 227 | <listitem>
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| 228 | <para>is the system activity data collector, used as a backend for
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| 229 | <command>sar</command>.</para>
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| 230 | <indexterm zone="sysstat sadc">
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| 231 | <primary sortas="b-sadc">sadc</primary>
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| 232 | </indexterm>
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| 233 | </listitem>
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| 234 | </varlistentry>
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| 235 |
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| 236 | </variablelist>
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| 237 |
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| 238 | </sect2>
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[f384a9d] | 239 |
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| 240 | </sect1>
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