I didn't disabled anything, but after installing the node when i configure the option "oVirt Engine" it gives an error saying it can't download the certificate, but i had this error with previous versions of the node, and it detected ok the CPU family.

This is the output after a fresh install of the node:

[root@blade4 ~]# vdsClient -s 0 getVdsCaps | grep -i flags
Traceback (most recent call last):
  File "/usr/share/vdsm/vdsClient.py", line 2275, in <module>
  File "/usr/share/vdsm/vdsClient.py", line 403, in do_getCap
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1578, in __request
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1292, in single_request
  File "/usr/lib64/python2.7/xmlrpclib.py", line 1439, in send_content
  File "/usr/lib64/python2.7/httplib.py", line 954, in endheaders
  File "/usr/lib64/python2.7/httplib.py", line 814, in _send_output
  File "/usr/lib64/python2.7/httplib.py", line 776, in send
  File "/usr/lib/python2.7/site-packages/vdsm/SecureXMLRPCServer.py", line 91, in connect
  File "/usr/lib64/python2.7/socket.py", line 553, in create_connection
gaierror: [Errno -2] Name or service not known


[root@blade4 ~]# virsh capabilities
<capabilities>

  <host>
    <uuid>35303737-3830-435a-4a30-30333035455a</uuid>
    <cpu>
      <arch>x86_64</arch>
      <model>Nehalem</model>
      <vendor>Intel</vendor>
      <topology sockets='1' cores='4' threads='2'/>
      <feature name='rdtscp'/>
      <feature name='dca'/>
      <feature name='pdcm'/>
      <feature name='xtpr'/>
      <feature name='tm2'/>
      <feature name='est'/>
      <feature name='vmx'/>
      <feature name='ds_cpl'/>
      <feature name='monitor'/>
      <feature name='dtes64'/>
      <feature name='pbe'/>
      <feature name='tm'/>
      <feature name='ht'/>
      <feature name='ss'/>
      <feature name='acpi'/>
      <feature name='ds'/>
      <feature name='vme'/>
    </cpu>
    <power_management/>
    <migration_features>
      <live/>
      <uri_transports>
        <uri_transport>tcp</uri_transport>
      </uri_transports>
    </migration_features>
    <topology>
      <cells num='1'>
        <cell id='0'>
          <cpus num='8'>
            <cpu id='0'/>
            <cpu id='1'/>
            <cpu id='2'/>
            <cpu id='3'/>
            <cpu id='4'/>
            <cpu id='5'/>
            <cpu id='6'/>
            <cpu id='7'/>
          </cpus>
        </cell>
      </cells>
    </topology>
    <secmodel>
      <model>selinux</model>
      <doi>0</doi>
    </secmodel>
  </host>

  <guest>
    <os_type>hvm</os_type>
    <arch name='i686'>
      <wordsize>32</wordsize>
      <emulator>/usr/bin/qemu-system-x86_64</emulator>
      <machine>pc-0.15</machine>
      <machine>pc-1.0</machine>
      <machine canonical='pc-1.0'>pc</machine>
      <machine>pc-0.14</machine>
      <machine>pc-0.13</machine>
      <machine>pc-0.12</machine>
      <machine>pc-0.11</machine>
      <machine>pc-0.10</machine>
      <machine>isapc</machine>
      <domain type='qemu'>
      </domain>
      <domain type='kvm'>
        <emulator>/usr/bin/qemu-kvm</emulator>
        <machine>pc-0.15</machine>
        <machine>pc-1.0</machine>
        <machine canonical='pc-1.0'>pc</machine>
        <machine>pc-0.14</machine>
        <machine>pc-0.13</machine>
        <machine>pc-0.12</machine>
        <machine>pc-0.11</machine>
        <machine>pc-0.10</machine>
        <machine>isapc</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <pae/>
      <nonpae/>
      <acpi default='on' toggle='yes'/>
      <apic default='on' toggle='no'/>
    </features>
  </guest>

  <guest>
    <os_type>hvm</os_type>
    <arch name='x86_64'>
      <wordsize>64</wordsize>
      <emulator>/usr/bin/qemu-system-x86_64</emulator>
      <machine>pc-0.15</machine>
      <machine>pc-1.0</machine>
      <machine canonical='pc-1.0'>pc</machine>
      <machine>pc-0.14</machine>
      <machine>pc-0.13</machine>
      <machine>pc-0.12</machine>
      <machine>pc-0.11</machine>
      <machine>pc-0.10</machine>
      <machine>isapc</machine>
      <domain type='qemu'>
      </domain>
      <domain type='kvm'>
        <emulator>/usr/bin/qemu-kvm</emulator>
        <machine>pc-0.15</machine>
        <machine>pc-1.0</machine>
        <machine canonical='pc-1.0'>pc</machine>
        <machine>pc-0.14</machine>
        <machine>pc-0.13</machine>
        <machine>pc-0.12</machine>
        <machine>pc-0.11</machine>
        <machine>pc-0.10</machine>
        <machine>isapc</machine>
      </domain>
    </arch>
    <features>
      <cpuselection/>
      <deviceboot/>
      <acpi default='on' toggle='yes'/>
      <apic default='on' toggle='no'/>
    </features>
  </guest>

</capabilities>

When i add the host to oVirt i get this message:

Host blade4.vi.pt moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : model_Nehalem

Best regards,
Ricardo Esteves.

-----Original Message-----
From: Itamar Heim <iheim@redhat.com>
To: Ricardo Esteves <ricardo.m.esteves@gmail.com>
Cc: users@ovirt.org
Subject: Re: [Users] oVIrt 3.1 - Xeon E5530 - Wrong cpu identification
Date: Wed, 01 Aug 2012 15:43:22 +0300

On 08/01/2012 02:28 PM, Ricardo Esteves wrote:
>
> [root@blade4 <mailto:root@blade4> ~]# vdsClient -s 0 getVdsCaps | grep
> -i flags
> Traceback (most recent call last):
>    File "/usr/share/vdsm/vdsClient.py", line 2275, in <module>
>    File "/usr/share/vdsm/vdsClient.py", line 403, in do_getCap
>    File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__
>    File "/usr/lib64/python2.7/xmlrpclib.py", line 1578, in __request
>    File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request
>    File "/usr/lib64/python2.7/xmlrpclib.py", line 1292, in single_request
>    File "/usr/lib64/python2.7/xmlrpclib.py", line 1439, in send_content
>    File "/usr/lib64/python2.7/httplib.py", line 954, in endheaders
>    File "/usr/lib64/python2.7/httplib.py", line 814, in _send_output
>    File "/usr/lib64/python2.7/httplib.py", line 776, in send
>    File "/usr/lib/python2.7/site-packages/vdsm/SecureXMLRPCServer.py",
> line 98, in connect
>    File "/usr/lib64/python2.7/ssl.py", line 381, in wrap_socket
>    File "/usr/lib64/python2.7/ssl.py", line 141, in __init__
> SSLError: [Errno 0] _ssl.c:340: error:00000000:lib(0):func(0):reason(0)

did you somehow disable ssl?
is vdsm running?
what's its status in engine?

what does this return:
virsh capabilities | grep model


>
> -----Original Message-----
> *From*: Itamar Heim <iheim@redhat.com
> <mailto:Itamar%20Heim%20%3ciheim@redhat.com%3e>>
> *To*: Ricardo Esteves <ricardo.m.esteves@gmail.com
> <mailto:Ricardo%20Esteves%20%3cricardo.m.esteves@gmail.com%3e>>
> *Cc*: users@ovirt.org <mailto:users@ovirt.org>
> *Subject*: Re: [Users] oVIrt 3.1 - Xeon E5530 - Wrong cpu identification
> *Date*: Wed, 01 Aug 2012 13:59:27 +0300
>
> On 08/01/2012 12:57 PM, Ricardo Esteves wrote:
>> Hi,
>>
>> With the latest version of ovirt my host's CPU is not correctly identified,
>> my host's have an Intel Xeon E5530 (Nehalem family), but is being identified as Conrad family.
>>
>> My installed versions:
>>
>> ovirt-engine-3.1.0-2.fc17.noarch
>> ovirt-node-iso-2.5.0-2.0.fc17.iso
>>
>>
>> Best regards,
>> Ricardo Esteves.
>>
>>
>>
>> _______________________________________________
>> Users mailing list
>>Users@ovirt.org  <mailto:Users@ovirt.org>
>>http://lists.ovirt.org/mailman/listinfo/users
>>
>
> please share:
> vdsClient -s 0 getVdsCaps | grep -i flags
>