openstack-manuals/doc/common/section_xapi-resize-setup.xml
Christian Berendt b2235bf3fb Unified the syntax of the XML root element (common)
Execluded all XML files in the directory doc/common/tables because
they are autogenerated.

The XML root element of Docbook XML files should match the following
format:

<ELEMENT xmlns="http://docbook.org/ns/docbook"
  xmlns:xi="http://www.w3.org/2001/XInclude"
  xmlns:xlink="http://www.w3.org/1999/xlink"
  version="5.0"
  xml:id="THE_XML_ID_OF_THE_ELEMENT">

Change-Id: If12091be81ec8b2e6e53bfcb4c3a883a65e24736
2014-07-09 22:23:03 +02:00

41 lines
2.1 KiB
XML

<?xml version="1.0" encoding="UTF-8"?>
<section xmlns="http://docbook.org/ns/docbook"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xlink="http://www.w3.org/1999/xlink"
version="5.0"
xml:id="xapi-resize-setup">
<?dbhtml stop-chunking?>
<title>Modify Dom0 for resize/migration support</title>
<para>To resize servers with XenServer and XCP, you must:</para>
<itemizedlist>
<listitem>
<para>Establish a root trust between all hypervisor nodes
of your deployment:</para>
<para>To do so, generate an ssh key-pair with the
<command>ssh-keygen</command> command. Ensure that
each of your dom0's
<filename>authorized_keys</filename> file (located
in <filename>/root/.ssh/authorized_keys</filename>)
contains the public key fingerprint (located in
<filename>/root/.ssh/id_rsa.pub</filename>).</para>
</listitem>
<listitem>
<para>Provide an <filename>/images</filename> mount point
to the dom0 for your hypervisor:</para>
<para>Dom0 space is at a premium so creating a directory
in dom0 is potentially dangerous and likely to fail
especially when you resize large servers. The least
you can do is to symlink <filename>/images</filename>
to your local storage SR. The following instructions
work for an English-based installation of XenServer
(and XCP) and in the case of ext3-based SR (with which
the resize functionality is known to work
correctly).</para>
<screen><prompt>#</prompt> <userinput>LOCAL_SR=$(xe sr-list name-label="Local storage" --minimal)</userinput>
<prompt>#</prompt> <userinput>IMG_DIR="/var/run/sr-mount/$LOCAL_SR/images"</userinput>
<prompt>#</prompt> <userinput>mkdir -p "$IMG_DIR"</userinput>
<prompt>#</prompt> <userinput>ln -s "$IMG_DIR" /images</userinput></screen>
</listitem>
</itemizedlist>
</section>