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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.htmlI 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.danOn Thu, Nov 8, 2012 at 11:06 AM, Skible OpenStack <skible.openstack@xxxxxxxxx <mailto:skible.openstack@xxxxxxxxx>> 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 <http://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@xxxxxxxxx <mailto:skible.openstack@xxxxxxxxx>> 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@xxxxxxxxx <mailto:skible.openstack@xxxxxxxxx>> 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 <https://launchpad.net/%7Eopenstack> Post to : openstack@xxxxxxxxxxxxxxxxxxx <mailto:openstack@xxxxxxxxxxxxxxxxxxx> Unsubscribe : https://launchpad.net/~openstack <https://launchpad.net/%7Eopenstack> More help : https://help.launchpad.net/ListHelp-- Regards,VeeraReddy.B 9959236555._______________________________________________ Mailing list: https://launchpad.net/~openstack <https://launchpad.net/%7Eopenstack> Post to : openstack@xxxxxxxxxxxxxxxxxxx <mailto:openstack@xxxxxxxxxxxxxxxxxxx> Unsubscribe : https://launchpad.net/~openstack <https://launchpad.net/%7Eopenstack> More help : https://help.launchpad.net/ListHelp_______________________________________________ Mailing list: https://launchpad.net/~openstack <https://launchpad.net/%7Eopenstack> Post to : openstack@xxxxxxxxxxxxxxxxxxx <mailto:openstack@xxxxxxxxxxxxxxxxxxx> Unsubscribe : https://launchpad.net/~openstack <https://launchpad.net/%7Eopenstack> More help : https://help.launchpad.net/ListHelp -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dan Wendlandt Nicira, Inc: www.nicira.com <http://www.nicira.com> twitter: danwendlandt ~~~~~~~~~~~~~~~~~~~~~~~~~~~_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@xxxxxxxxxxxxxxxxxxx Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
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