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