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    <title>topic Can't add a disconnected host to a cluster in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113263#M195301</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi folks,&lt;/P&gt;&lt;P&gt;I have a very strange problem - 1 host in my cluster is always shown as disconnected. When i connect it manually, it is then coonected, starts to configure HA and after that is disconnected again.&lt;/P&gt;&lt;P&gt;Disabling HA - the same problem. It stays connected some seconds (up to a minute) and then is disconnected again.&lt;/P&gt;&lt;P&gt;Do you have any ideas?&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Fri, 14 Aug 2009 13:54:38 GMT</pubDate>
    <dc:creator>Prokurator</dc:creator>
    <dc:date>2009-08-14T13:54:38Z</dc:date>
    <item>
      <title>Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113263#M195301</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi folks,&lt;/P&gt;&lt;P&gt;I have a very strange problem - 1 host in my cluster is always shown as disconnected. When i connect it manually, it is then coonected, starts to configure HA and after that is disconnected again.&lt;/P&gt;&lt;P&gt;Disabling HA - the same problem. It stays connected some seconds (up to a minute) and then is disconnected again.&lt;/P&gt;&lt;P&gt;Do you have any ideas?&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 13:54:38 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113263#M195301</guid>
      <dc:creator>Prokurator</dc:creator>
      <dc:date>2009-08-14T13:54:38Z</dc:date>
    </item>
    <item>
      <title>Re: Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113264#M195302</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi mate,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;One initial thing to check is DNS - make sure all hosts in the HA cluster are resolvable from all other hosts (and vc) - use only lowercase for the hostname entries i: &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN __jive_macro_name="noformat"&gt;/etc/vmware/esx.conf, /etc/hosts, /etc/sysconfig/network and /proc/sys/kernel/hostname&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;Also check hostnames are lowercase through VI (configuration tab | DNS and routing)&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Hope this helps.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Dan&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 14:08:13 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113264#M195302</guid>
      <dc:creator>dtracey</dc:creator>
      <dc:date>2009-08-14T14:08:13Z</dc:date>
    </item>
    <item>
      <title>Re: Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113265#M195303</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;DNS is a good first suspect, but it may also be the management agent itself.  At the service console type&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;PRE __jive_macro_name="code"&gt;service vmware-vpxa restart&lt;/PRE&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 14:14:53 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113265#M195303</guid>
      <dc:creator>Troy_Clavell</dc:creator>
      <dc:date>2009-08-14T14:14:53Z</dc:date>
    </item>
    <item>
      <title>Re: Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113266#M195304</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;True - also check that your network configuration is spot on - Service Console and vmkernel default gateways and subnet masks are correct etc.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 14:17:27 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113266#M195304</guid>
      <dc:creator>dtracey</dc:creator>
      <dc:date>2009-08-14T14:17:27Z</dc:date>
    </item>
    <item>
      <title>Re: Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113267#M195305</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;HA issue are mostly due to nameresolution issues.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;This is great whitepaer to troubleshoot HA issues logically. Attaching the white paper&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="http://xtravirt.com/xd10005"&gt;&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; I would suggest the following after you have confirmed that your name resolution is in place.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;1. Move the disconnected ESX server out of the cluster.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;2.  Restart mgmt-vmware service on ESX&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;3. move it back to the cluster &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;If you found this information useful, please consider awarding points for "Correct" or "Helpful". Thanks!!! &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;-Josh&lt;/P&gt;&lt;P&gt;Trying to learn &lt;IMG src="http://communities.vmware.com/images/emoticons/happy.gif" /&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 14:35:58 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113267#M195305</guid>
      <dc:creator>Joshua_Mally</dc:creator>
      <dc:date>2009-08-14T14:35:58Z</dc:date>
    </item>
    <item>
      <title>Re: Can't add a disconnected host to a cluster</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113268#M195306</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;After restarting the management agent the host is connected again&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thank you all!&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 14 Aug 2009 14:40:59 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Can-t-add-a-disconnected-host-to-a-cluster/m-p/2113268#M195306</guid>
      <dc:creator>Prokurator</dc:creator>
      <dc:date>2009-08-14T14:40:59Z</dc:date>
    </item>
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