The Physical cpu core is 4*2*2=16 , by default, physical cpu: vcpu is 16:1, you can change the rate.
so you have 16*16=256 core. the memery the memery is 96*1.5=144G now you would know support how many vm. seem you need modify the quota, one host seem have 16vm limit. On Wed, Aug 28, 2013 at 7:44 PM, <j...@kleinpeter.org> wrote: > That depends on how big the VM is, and what over subscription rate you're > running out. > > Generally RAM is going to be your limiting factor, it is fairly easy to > over subscribe CPU, and if you're disk is really unlimited, that isn't > going to stop you either. > > Assuming you're not oversubscribing RAM, you'll need to account for the > overhead of your operating system and various services, KVM overhead etc, > say 8-12GB. Subtract that out of your RAM number. > > Then divide by the amount of RAM your base VM has, and that would be how > many you could (theoretically) run. Your CPU over subscription rate would > then play in as a factor of how many of those is really possible. > > More importantly -- try it out and see where it breaks! Nothing like a > good load test. > > > Hello! > > I'm starting to deploy a private cloud on OpenStack! As the hypervisor > > I use nova+KVM on Centos 6.4. > > Tell me how to count how many virtual machines can be placed on a single > > KVM node. > > How to count the number of virtual machines on single node to get > > everything working perfectly? > > > > Hardware configuration: > > CPU: 2x Intel(R) Xeon(R) CPU E5-2609 @ 2.40GHz - 4 core > > RAM: 96 GB > > HDD:Unlimited > > HW: ProLiant BL460c > _______________________________________________ > Mailing list: > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack@lists.openstack.org > Unsubscribe : > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > -- Shake Chen
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