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adding documentation about copy propagation

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commit ff8caebd37a7bfa55a1d89078e90df9aac3233cf 1 parent 30b007d
John Bresnahan buzztroll authored
Showing with 43 additions and 0 deletions.
  1. +43 −0 docs/src/admin/reference.html
43 docs/src/admin/reference.html
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@@ -170,6 +170,18 @@
</p>
</li>
+ <li>
+ <p>
+ <a href="#cpprop">Copy Propagation</a>
+ </p>
+ <ul>
+ <li>
+ <a href="#cpprop-config">Configuration</a>
+ </li>
+ </ul>
+ </li>
+
+
</ul>
@@ -2366,6 +2378,37 @@
Admins can add site specific optimizations (like virtio) to this template.
</p>
+ <p>
+ <a href="#cpprop">Copy Propagation</a>
+ </p>
+ <ul>
+ <li>
+ <a href="#cpprop-config">Configuration</a>
+
+<a name="cpprop"> </a>
+<h2>Copy Propagation _NAMELINK(cpprop)</h2>
+<p>
+Copy propagation is a very simple mechanism for getting a virtual machine
+image out of Cumulus and coping it to the VMM for use as a VM instance.
+To use this mechanism all VMMs must have shared disk space with the
+Cumulus repository. In situations where users have a file system shared
+among all nodes in the Nimbus setup boot times can be significantly reduced
+with the cp propagation driver.
+</p>
+
+<a name="cpprop-config"> </a>
+<h3>Copy Propagation Configuration _NAMELINK(cpprop-config)</h3>
+<p>
+In order to enable copy propagation you must edit the file
+<tt class="literal">$NIMBUS_HOME/services/etc/nimbus/workspace-service/other/authz-callout-ACTIVE.xml</tt>
+ and change:
+ <pre class="panel">&lt;property name="repoScheme" value="scp" /&gt;</pre>
+ to:
+ <pre class="panel">&lt;property name="repoScheme" value="cp" /&gt;</pre>
+
+</p>
+
+
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