Open Stack

Robert, yes, I'm sure in certain configurations and with certain tuning,
one can potentially place all services on a single device, and Quantum
supports that just fine as well.  For the sake of documentation, we wanted
to show the case where the two were separated, as this tends to be what we
see deployed.

Dan


On Thu, Nov 8, 2012 at 6:56 PM, Robert Garron
<Robert.Garron at access3000.net>wrote:

>  Dan,
>
> I see your point about throughput and I/O, but if you have a multi-core
> server, greater than say 4 cores, and thus likely you would have multiple
> NICs, 2 or More, your assumptions fall apart about the cpu usage and I/o.
> For example, using XEN or Qemu or in the older systems where this concept
> originated - VMS OS (from Digital Equipment Corp. - see Galaxy product and
> similar) you can assign affinity to CPUs or even dedicate CPU's to tasks or
> VM's.  In addition, using Cisco networking or similar you can dedicated I/O
> paths, and within a system, you can even dedicated a NIC Card or Port to a
> path.  So the deployment of OpenStack on one physical server or several
> should not even be a consideration except to the installer and their
> budget; and whether or not High Availability is a concern.  What I think is
> important is the consistency of the network design, I/O design for multiple
> VM's and the related load and intended usage of the individual cores of a
> server.  But the most important consistency is having installation guides
> that work over and over for installations on different hardware and OS's.
>
> Myself, if I can get past my current nova and horizon issues, I will then
> be in a position to contribute in this and many other areas....
>
> Regards,
> Robert
>
>
>
>
> On 11/8/12 4:06 PM, Skible OpenStack wrote:
>
> Thank you Dan for shedding light on this matter. However, there is
> something concerns me and a lot of other people trying to deploy OpenStack
> is that most Servers has 2 NICs which creates a problem because your Demo
> is a great one but the necessary hardware is just not always met !
>
> I have been struggling to find a solution out of it, can you suggest some
> please ?
> Le 08/11/2012 21:38, Dan Wendlandt a écrit :
>
> Hi,
>
>  The Quantum Admin Guide indicates that you can choose to combine all
> services onto a single node, or have separate nodes:
> http://docs.openstack.org/trunk/openstack-network/admin/content/services.html
>
>  I will update the text to indicate that that the main reason to use a
> dedicated network gateway node is if you plan on having VMs send
> substantial amounts of traffic through that node, and thus would not want
> that CPU usage to conflict with other openstack services running on your
> controller node.
>
>  dan
>
> On Thu, Nov 8, 2012 at 11:06 AM, Skible OpenStack <
> skible.openstack at gmail.com> wrote:
>
>>  Can someone please enlighten us about the goods of having a separated
>> network node ?
>> I honestly work in production envirnoments (over 30 nodes) and i really
>> give computing resources more credit than networking ones !
>>
>> Am i doing it the wrong way here ?
>>
>> Le 08/11/2012 18:49, balaji patnala a écrit :
>>
>> Hi Openers,
>>
>> One doubt i have is like, as we see in the demo setup in the Quantum
>> Admin guide available in openstack.org, we have Network Node as a
>> seperate physical node connected to Controller Node and Compute Node.
>>
>> But i see that the openstack community who is actively using Folsom is
>> not discussing more on this kind of setup.
>>
>> Not sure if iam missing any key information on this like that the Network
>> Node setup may not be widely used in current deployment scenarios or it is
>> too early to use Network Node as a seperate physical host for openstack.
>>
>> Open comments on this will be more helpful for openstack community to
>> understand better on the features of folsom.
>>
>> regards,
>> balaji
>>
>>
>>
>> On Thu, Nov 8, 2012 at 7:09 PM, Skible OpenStack <
>> skible.openstack at gmail.com> wrote:
>>
>>>  OpenStack Folsom install guide<https://github.com/mseknibilel/OpenStack-Folsom-Install-guide/blob/master/OpenStack_Folsom_Install_Guide_WebVersion.rst>
>>>
>>> You will find what you want and even more ;)
>>>
>>> Le 08/11/2012 14:30, Veera Reddy a écrit :
>>>
>>> Hi Skible,
>>>
>>>  Can you please send me below configuration files of three setups you
>>> have mentioned.
>>>
>>>
>>>    - ovs_quantum_plugin.ini (For controller and node)
>>>    - nova.conf (For controller and node)
>>>
>>> Thanks in advance
>>>
>>>
>>>  Regards,
>>> Veera.
>>>
>>> On Thu, Nov 8, 2012 at 2:57 PM, Skible OpenStack <
>>> skible.openstack at gmail.com> wrote:
>>>
>>>> Hello Stackers !
>>>>
>>>> I am currently trying to create pictures of my OpenStack deployment
>>>> architecture as a part of my OpenStack Folsom install guide<https://github.com/mseknibilel/OpenStack-Folsom-Install-guide/blob/master/OpenStack_Folsom_Install_Guide_WebVersion.rst>and i would like to ask a favorite.
>>>>
>>>> Could you be kind and please take a look at these Pics below and report
>>>> back if there is a missing or wrong thing.
>>>>
>>>> Thank you.
>>>>
>>>>
>>>> ==========Quantum  on VLAN + 3 NICs on controller node============
>>>> http://i.imgur.com/Ueh5Z.jpg
>>>> ===================================================
>>>>
>>>> ==========Quantum  on VLAN + 2 NICs on controller node============
>>>> http://i.imgur.com/RK6X7.jpg
>>>> ===================================================
>>>>
>>>> ==========Quantum  on GRE-tunneling + 3 NICs on controller node=======
>>>> http://i.imgur.com/1jCFC.jpg
>>>> ===================================================
>>>>
>>>>
>>>> To make of OpenStack, the IT project of the century
>>>>
>>>> Best regards
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> Mailing list: https://launchpad.net/~openstack
>>>> Post to     : openstack at lists.launchpad.net
>>>> Unsubscribe : https://launchpad.net/~openstack
>>>> More help   : https://help.launchpad.net/ListHelp
>>>>
>>>>
>>>
>>>
>>>  --
>>> Regards,
>>> VeeraReddy.B
>>> 9959236555.
>>>
>>>
>>>
>>> _______________________________________________
>>> Mailing list: https://launchpad.net/~openstack
>>> Post to     : openstack at lists.launchpad.net
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>>>
>>
>>
>> _______________________________________________
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>>
>>
>
>
>  --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Dan Wendlandt
> Nicira, Inc: www.nicira.com
> twitter: danwendlandt
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
> _______________________________________________
> Mailing list: https://launchpad.net/~openstack
> Post to     : openstack at lists.launchpad.net
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>
>
> _______________________________________________
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> Post to     : openstack at lists.launchpad.net
> Unsubscribe : https://launchpad.net/~openstack
> More help   : https://help.launchpad.net/ListHelp
>
>


-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Wendlandt
Nicira, Inc: www.nicira.com
twitter: danwendlandt
~~~~~~~~~~~~~~~~~~~~~~~~~~~
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