planning-planning-rec_min_entryscale_kvm.xml

<?xml version="1.0"?>
<!DOCTYPE section [
 <!ENTITY % entities SYSTEM "entity-decl.ent"> %entities;
]>
<section xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude"
  xmlns:xlink="http://www.w3.org/1999/xlink" xml:id="rec-min-entryscale-kvm" version="5.1">
 <title>Recommended Hardware Minimums for an Entry-scale KVM</title>
 <para>
  These recommended minimums are based on example configurations included with
  the installation models (see <xref linkend="example-configurations"/>). They
  are suitable only for demo environments. For production systems you will
  want to consider your capacity and performance requirements when making
  decisions about your hardware.
 </para>
 <note>
  <para>
   The disk requirements detailed below can be met with logical drives, logical
   volumes, or external storage such as a 3PAR array.
  </para>
 </note>
 <informaltable colsep="1" rowsep="1">
  <tgroup cols="7">
   <colspec colname="c1" colnum="1"/>
   <colspec colname="c2" colnum="2"/>
   <colspec colname="c3" colnum="3"/>
   <colspec colname="c4" colnum="4"/>
   <colspec colname="c5" colnum="5"/>
   <colspec colname="c6" colnum="6"/>
   <colspec colname="c7" colnum="7"/>
   <thead>
    <row>
     <entry morerows="1">Node Type</entry>
     <entry morerows="1">Role Name</entry>
     <entry morerows="1">Required Number</entry>
     <entry namest="c4" nameend="c7" align="center">
      Server Hardware - Minimum Requirements and Recommendations
     </entry>
    </row>
    <row>
     <entry>Disk</entry>
     <entry>Memory</entry>
     <entry>Network</entry>
     <entry>CPU</entry>
    </row>
   </thead>
   <tbody>
    <row>
     <entry>Dedicated &clm; (optional)</entry>
     <entry>Lifecycle-manager</entry>
     <entry>1</entry>
     <entry>300 GB</entry>
     <entry>8 GB</entry>
     <entry>1 x 10 Gbit/s with PXE Support</entry>
     <entry>8 CPU (64-bit) cores total (Intel x86_64)</entry>
    </row>
    <row>
     <entry>Control Plane</entry>
     <entry>Controller</entry>
     <entry>3</entry>
     <entry>
      <itemizedlist>
       <listitem>
        <para>
         1 x 600 GB (minimum) - operating system drive
        </para>
       </listitem>
       <listitem>
        <para>
         2 x 600 GB (minimum) - Data drive
        </para>
       </listitem>
       <listitem>
        <para>
         Fast disks or SSDs are recommended.
        </para>
       </listitem>
      </itemizedlist>
     </entry>
     <entry>128 GB</entry>
     <entry>2 x 10 Gbit/s with one PXE enabled port</entry>
     <entry>8 CPU (64-bit) cores total (Intel x86_64)</entry>
    </row>
    <row>
     <entry>Compute</entry>
     <entry>Compute</entry>
     <entry>1-3</entry>
     <entry>2 x 600 GB (minimum)</entry>
     <entry>32 GB (memory must be sized based on the virtual machine instances hosted on the
            Compute node)</entry>
     <entry>2 x 10 Gbit/s with one PXE enabled port</entry>
     <entry>8 CPU (64-bit) cores total (Intel x86_64) with hardware virtualization support. The
            CPU cores must be sized based on the VM instances hosted by the Compute node.</entry>
    </row>
    <!-- FIXME: What are storage requirements? dpopov -->
    <!-- <row>
     <entry>Block Storage (Optional)</entry>
     <entry>VSA or OSD (Ceph)</entry>
     <entry>0 or 3 (which will provide the recommended redundancy)</entry>
     <entry>
      3 x 600 GB (minimum) See <xref linkend="preinstall-checklist"/> for
      more details.
     </entry>
     <entry>32 GB</entry>
     <entry>2 x 10 Gbit/s with one PXE enabled port</entry>
     <entry>8 CPU (64-bit) cores total (Intel x86_64)</entry>
    </row> -->
   </tbody>
  </tgroup>
 </informaltable>
 <para>
  For more details about the supported network requirements, see
  <xref linkend="example-configurations"/>.
 </para>
</section>