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esx: Extend documentation about 'vcenter' and add some about 'auto_answer'

This commit is contained in:
Matthias Bolte 2009-11-22 21:00:15 +01:00
parent c23a4fd13f
commit 49e261d14e
2 changed files with 49 additions and 11 deletions
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52
docs/drvesx.html.in
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@ -15,7 +15,7 @@
installed on the ESX server. The driver uses version 2.5 of the remote,
SOAP based
<a href="http://www.vmware.com/support/developer/vc-sdk/visdk25pubs/ReferenceGuide/">
VMware Virtual Infrastructure API</a> to communicate with the
VMware Virtual Infrastructure API</a> (VI API) to communicate with the
ESX server, like the VMware Virtual Infrastructure Client does. Since
version 4.0 this API is called
<a href="http://www.vmware.com/support/developer/vc-sdk/visdk400pubs/ReferenceGuide/">
@ -78,11 +78,12 @@ type://[username@]hostname[:port]/[?extraparameters]
<code>vcenter</code>
</td>
<td>
Hostname of a VMware vCenter
Hostname of a VMware vCenter or <code>*</code>
</td>
<td>
In order to perform a migration the driver needs to know the
VMware vCenter for the ESX server.
VMware vCenter for the ESX server. If set to <code>*</code>,
the driver connects to the vCenter known to the ESX server.
</td>
</tr>
<tr>
@ -97,6 +98,20 @@ type://[username@]hostname[:port]/[?extraparameters]
SSL certificate. The default value it 0.
</td>
</tr>
<tr>
<td>
<code>auto_answer</code>
</td>
<td>
<code>0</code> or <code>1</code>
</td>
<td>
If set to 1, the driver answers all
<a href="#questions">questions</a> with the default answer.
If set to 0, questions are reported as errors. The default
value it 0.
</td>
</tr>
</table>
@ -120,6 +135,25 @@ type://[username@]hostname[:port]/[?extraparameters]
</p>
<h2><a name="questions">Questions blocking tasks</a></h2>
<p>
Some methods of the VI API start tasks, for example
<code>PowerOnVM_Task()</code>. Such tasks may be blocked by questions
if the ESX server detects an issue with the domain that requires user
interaction. The ESX driver cannot prompt the user to answer a
question, libvirt doesn't have an API for something like this.
</p>
<p>
The VI API provides the <code>AnswerVM()</code> method to
programmatically answer a questions. So the driver has two options
how to handle such a situation: either answer the questions with the
default answer or report the question as an error and cancel the
blocked task if possible. The
<a href="#uriformat"><code>auto_answer</code></a> query parameter
controls the answering behavior.
</p>
<h2><a name="xmlspecial">Specialties in the domain XML config</a></h2>
<p>
There are several specialties in the domain XML config for ESX domains.
@ -404,8 +438,12 @@ ethernet0.address = "00:50:56:25:48:C7"
<h2><a name="migration">Migration</a></h2>
<p>
A migration cannot be initiated on an ESX server directly, a VMware
vCenter is necessary for this. The vCenter hostname has to be passed
to the driver via the <code>vcenter</code> query parameter.
vCenter is necessary for this. The <code>vcenter</code> query
parameter must be set either to the hostname or IP address of the
vCenter managing the ESX server or to <code>*</code>. Setting it
to <code>*</code> causes the driver to connect to the vCenter known to
the ESX server. If the ESX server is not managed by a vCenter an error
is reported.
</p>
<pre>
esx://example.com/?vcenter=example-vcenter.com
@ -413,11 +451,11 @@ esx://example.com/?vcenter=example-vcenter.com
<p>
Here an example how to migrate the domain <code>Fedora11</code> from
ESX server <code>example-src.com</code> to ESX server
<code>example-dst.com</code> involving vCenter
<code>example-dst.com</code> implicitly involving vCenter
<code>example-vcenter.com</code> using <code>virsh</code>.
</p>
<pre>
$ virsh -c esx://example-src.com/?vcenter=example-vcenter.com migrate Fedora11 esx://example-dst.com/?vcenter=example-vcenter.com
$ virsh -c esx://example-src.com/?vcenter=* migrate Fedora11 esx://example-dst.com/?vcenter=*
Enter username for example-src.com [root]:
Enter root password for example-src.com:
Enter username for example-vcenter.com [administrator]:

8
src/esx/README
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@ -18,8 +18,8 @@ Automatic question handling
What is a question in the ESX context?
--------------------------------------
The VI API contains calls that start tasks, for example PowerOnVM_Task(). Such
tasks may be blocked by a question if the ESX host detects an issue with the
The VI API contains methods that start tasks, for example PowerOnVM_Task(). Such
tasks may be blocked by questions if the ESX host detects an issue with the
virtual machine that requires user interaction.
An example: If a virtual machine has a serial port that is realized via a file,
@ -29,8 +29,8 @@ Until this question is answered the power-on task is blocked and the virtual
machine won't get powered on.
The ESX driver cannot prompt the user to answer a question, libvirt doesn't
have an API for something like this. The VI API provides a AnswerVM() method to
programmatically answer such questions. A question comes together with a list
have an API for something like this. The VI API provides the AnswerVM() method
to programmatically answer such questions. A question comes together with a list
of possible answers. One of this answers is marked as the default one. For all
questions I've seen so far the default answer is always a non-destructive one.