source: general/sysutils/sysstat-systemd.xml@ 7de9746

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;

  <!ENTITY sysstat-download-http "http://perso.wanadoo.fr/sebastien.godard/sysstat-&sysstat-version;.tar.xz">
  <!ENTITY sysstat-download-ftp  " ">
  <!ENTITY sysstat-md5sum        "85635dedac6802104a5737195d4effee">
  <!ENTITY sysstat-size          "284 KB">
  <!ENTITY sysstat-buildsize     "6.4 MB">
  <!ENTITY sysstat-time          "0.1 SBU">
]>

<sect1 id="sysstat" xreflabel="Sysstat-&sysstat-version;">
  <?dbhtml filename="sysstat.html"?>

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>Sysstat-&sysstat-version;</title>

  <indexterm zone="sysstat">
    <primary sortas="a-Sysstat">Sysstat</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to Sysstat</title>

    <para>The <application>Sysstat</application> package contains utilities
    to monitor system performance and usage activity.
    <application>Sysstat</application> contains the <command>sar</command>
    utility, common to many commercial Unixes, and tools you can schedule via
    cron to collect and historize performance and activity data.</para>

    &lfs75_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>Download (HTTP): <ulink url="&sysstat-download-http;"/></para>
      </listitem>
      <listitem>
        <para>Download (FTP): <ulink url="&sysstat-download-ftp;"/></para>
      </listitem>
      <listitem>
        <para>Download MD5 sum: &sysstat-md5sum;</para>
      </listitem>
      <listitem>
        <para>Download size: &sysstat-size;</para>
      </listitem>
      <listitem>
        <para>Estimated disk space required: &sysstat-buildsize;</para>
      </listitem>
      <listitem>
        <para>Estimated build time: &sysstat-time;</para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">Sysstat Dependencies</bridgehead>

    <para>There are no build-time requirements for this package; however,
    it is designed to be controlled by a cron daemon such as
    <xref linkend="fcron"/>.</para>

    <para condition="html" role="usernotes">User Notes:
    <ulink url="&blfs-wiki;/sysstat"/></para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Sysstat</title>

    <para>Install <application>Sysstat</application> by running the
    following commands:</para>

<screen><userinput>sa_lib_dir=/usr/lib/sa    \
sa_dir=/var/log/sa        \
conf_dir=/etc/sysconfig   \
./configure --prefix=/usr \
            --disable-man-group &amp;&amp;
make</userinput></screen>

    <para>This package does not come with a test suite.</para>

    <para>Now, as the <systemitem class="username">root</systemitem> user:</para>

<screen role="root"><userinput>make install</userinput></screen>

    <para>
      Install the systemd unit by running the following command as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>install -v -m644 sysstat.service /lib/systemd/system/sysstat.service</userinput></screen>

  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <para><envar>sa_lib_dir</envar>: This environment variable specifies the
    location of the package-specific library directory.</para>

    <para><envar>sa_dir</envar>: This environment variable specifies the
    location of the directory containing the data files.</para>

    <para><envar>conf_dir</envar>: This environment variable specifies the
    location of the system configuration directory.</para>

    <para><parameter>--disable-man-group</parameter>: This parameter causes
    the installation to ignore the man group variable resulting in the man
    files having
    <systemitem class="username">root</systemitem>:<systemitem class="groupname">root</systemitem>
    ownership.</para>

    <note><para>Run <command>./configure --help</command> to see other influential
    environment variables you can pass to <command>configure</command>. You may
    want to use the <envar>history</envar> and <envar>compressafter</envar>
    variables to customize the amount of data files kept on the system.</para></note>

  </sect2>

  <sect2 role="configuration">
    <title>Configuring Sysstat</title>

    <sect3 id="sysstat-config">
      <title>Config Files</title>

      <para>
        <filename>/etc/sysconfig/sysstat</filename> and
        <filename>/etc/sysconfig/sysstat.ioconf</filename>
      </para>

      <indexterm zone="sysstat sysstat-config">
        <primary sortas="e-etc-sysconfig-sysstat">/etc/sysconfig/sysstat</primary>
      </indexterm>
      <indexterm zone="sysstat sysstat-config">
        <primary sortas="e-etc-sysconfig-sysstat.ioconf">/etc/sysconfig/sysstat.ioconf</primary>
      </indexterm>

    </sect3>

    <sect3>
     <title>Cron Information</title>

      <para>To begin gathering <application>Sysstat</application> history
      information, you must add to, or create a privileged user's crontab. The
      history data location is
      <filename class="directory">/var/log/sa</filename>. The user running
      <application>Sysstat</application> utilities via cron must have write
      access to this location.</para>

      <para>Below is an example of what to install in the crontab. Adjust the
      parameters to suit your needs. Use <command>man sa1</command> and
      <command>man sa2</command> for information about the commands.</para>

<screen><literal># 8am-7pm activity reports every 10 minutes during weekdays
0 8-18 * * 1-5 /usr/lib/sa/sa1 600 6 &amp;

# 7pm-8am activity reports every hour during weekdays
0 19-7 * * 1-5 /usr/lib/sa/sa1 &amp;

# Activity reports every hour on Saturday and Sunday
0 * * * 0,6 /usr/lib/sa/sa1 &amp;

# Daily summary prepared at 19:05
5 19 * * * /usr/lib/sa/sa2 -A &amp;</literal></screen>

    <para>Ensure you submit the revised crontab to the cron daemon.</para>

    </sect3>

    <sect3 id="sysstat-init">
      <title>System Startup Information</title>

      <indexterm zone="sysstat sysstat-init">
        <primary sortas="f-sysstat">sysstat</primary>
      </indexterm>

      <para>At system startup, a LINUX RESTART message must be inserted in the
      daily data file to reinitialize the kernel counters. This can be
      automated by enabling the previously installed systemd unit
      using the following command as the
      <systemitem class="username">root</systemitem> user:</para>

<screen role="root"><userinput>systemctl enable sysstat</userinput></screen>

    </sect3>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>cifsiostat, iostat, mpstat, nfsiostat-sysstat, pidstat, sadf,
             and sar</seg>
        <seg>None</seg>
        <seg>/usr/lib/sa, 
             /usr/share/doc/sysstat-&sysstat-version; and,
             /var/log/sa
        </seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="cifsiostat">
        <term><command>cifsiostat</command></term>
        <listitem>
          <para>displays statistics about read and write operations on CIFS
          filesystems.</para>
          <indexterm zone="sysstat cifsiostat">
            <primary sortas="b-cifsiostat">cifsiostat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="iostat">
        <term><command>iostat</command></term>
        <listitem>
          <para>reports CPU statistics and input/output
          statistics for devices and partitions.</para>
          <indexterm zone="sysstat iostat">
            <primary sortas="b-iostat">iostat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="mpstat">
        <term><command>mpstat</command></term>
        <listitem>
          <para>writes activities for each available processor.</para>
          <indexterm zone="sysstat mpstat">
            <primary sortas="b-mpstat">mpstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="nfsiostat">
        <term><command>nfsiostat-sysstat</command></term>
        <listitem>
          <para>displays statistics about read and write operations on NFS
          filesystems.</para>
          <indexterm zone="sysstat nfsiostat">
            <primary sortas="b-nfsiostat">nfsiostat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pidstat">
        <term><command>pidstat</command></term>
        <listitem>
          <para>is used for monitoring individual tasks currently being managed
          by the Linux kernel.</para>
          <indexterm zone="sysstat pidstat">
            <primary sortas="b-pidstat">pidstat</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="sadf">
        <term><command>sadf</command></term>
        <listitem>
          <para>is used for displaying the contents of data files created by
          the <command>sar</command> command. But unlike
          <command>sar</command>, <command>sadf</command> can write its data
          in many different formats.</para>
          <indexterm zone="sysstat sadf">
            <primary sortas="b-sadf">sadf</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="sar">
        <term><command>sar</command></term>
        <listitem>
          <para>is used for displaying the contents of elected cumulative activity
          counters in the operating system.</para>
          <indexterm zone="sysstat sar">
            <primary sortas="b-sar">sar</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>