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<section id="append-displayname-vms">
<title>Appending a Display Name to the Guest VM’s Internal Name</title>
<para>Every guest VM has an internal name. The host uses the internal name to identify the guest
VMs. &PRODUCT; gives you an option to provide a guest VM with a display name. You can set this
display name as the internal name so that the vCenter can use it to identify the guest VM. A new
global parameter, vm.instancename.flag, has now been added to achieve this functionality.</para>
<para>The default format of the internal name is
i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;, where instance.name is a global
parameter. However, If vm.instancename.flag is set to true, and if a display name is provided
during the creation of a guest VM, the display name is appended to the internal name of the
guest VM on the host. This makes the internal name format as
i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;displayName&gt;. The default value of vm.instancename.flag
is set to false. This feature is intended to make the correlation between instance names and
internal names easier in large data center deployments.</para>
<para>The following table explains how a VM name is displayed in different scenarios.</para>
<informaltable>
<tgroup cols="5" align="left" colsep="1" rowsep="1">
<colspec colnum="1" colname="c1" colwidth="1.0*"/>
<colspec colnum="2" colname="c2" colwidth="1.31*"/>
<colspec colnum="3" colname="c3" colwidth="1.07*"/>
<colspec colnum="4" colname="c4" colwidth="2.6*"/>
<colspec colnum="5" colname="c5" colwidth="4.65*"/>
<thead>
<row>
<entry><para>User-Provided Display Name </para></entry>
<entry><para>vm.instancename.flag</para></entry>
<entry><para>Hostname on the VM</para></entry>
<entry><para>Name on vCenter</para></entry>
<entry><para>Internal Name</para></entry>
</row>
</thead>
<tbody>
<row>
<entry><para>Yes</para></entry>
<entry><para>True</para></entry>
<entry><para>Display name</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-displayName</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-displayName</para></entry>
</row>
<row>
<entry><para>No</para></entry>
<entry><para>True</para></entry>
<entry><para>UUID</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
</row>
<row>
<entry><para>Yes</para></entry>
<entry><para>False</para></entry>
<entry><para>Display name</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
</row>
<row>
<entry><para>No</para></entry>
<entry><para>False</para></entry>
<entry><para>UUID</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
<entry><para>i-&lt;user_id&gt;-&lt;vm_id&gt;-&lt;instance.name&gt;</para></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>