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Cattle Wrangling For Pet Whisperers: Building A Multi-hypervisor Cloud
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Cattle Wrangling For Pet Whisperers: Building A Multi-hypervisor Cloud

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What to know for building a multi-hypervisor OpenStack Cloud with KVM and vSphere - Updated for the Havana release

What to know for building a multi-hypervisor OpenStack Cloud with KVM and vSphere - Updated for the Havana release

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  • 1. Cattle Wrangling For Pet Whisperers: Building A Multi-hypervisor OpenStack Cloud with KVM and vSphere Prepared by: Kenneth Hui Date: October 22, 2013
  • 2. Who Am I? 2
  • 3. Where I’ve Been 3
  • 4. 4 Clarifying Some Points
  • 5. 5 VMware is a Company NOT a Product • VMware as a company sells multiple technologies and products – vSphere – vCloud – End-user Computing • VMware is in co-opetition with OpenStack – Cooperation • vSphere and Nova • Nicira and Neutron – Competition • ESXi vs. KVM • vCloud Automation Center (vCAC) • vCloud Hybrid Service (vCHS)
  • 6. 6 OpenStack Is NOT a Hypervisor • OpenStack Nova is a manager of hypervisors • OpenStack can manage multiple hypervisors – https://wiki.openstack.org/wiki/HypervisorSupportMatrix
  • 7. No vSphere Style HA Using KVM with libvirt 7
  • 8. So What’s Wrong with OpenStack? 8
  • 9. 9 Let’s Talk Resiliency in the Cloud
  • 10. Focus on Anti-fragility 10
  • 11. Focus on Scaling Out 11
  • 12. Focus on Application Resiliency 12
  • 13. 13 Use Cattle Not Pets • Virtual Machines needs care and feeding – Name the VM – Tune and groom regularly – Feed pets with good food and supplements – Take pets to the vet when they are sick • Cloud servers are disposable – VMs are not unique – Tune and groom apps not the cattle – Replace when necessary – Shoot the cattle when it is sick
  • 14. Let Loose the Monkeys! 14
  • 15. 15 But I Still Want to Use vSphere in My Cloud
  • 16. 16 So Why vSphere with OpenStack? • Customers have sunk investments in vSphere • Customers have legacy workloads that may not be suitable for KVM with libvirt • vSphere can provide an on-ramp to a Cloud • Provides an alternative to VMware vCHS
  • 17. vSphere Is Not 17
  • 18. 18 Multi-hypervisor Cloud Architecture - Grizzly
  • 19. 19 Multi-hypervisor Cloud Architecture - Havana
  • 20. 20 Nova Compute Scheduling
  • 21. 21 How Nova Scheduler Sees vSphere
  • 22. 22 Potential Resource Mismatch
  • 23. 23 Potential Resource Misplacement
  • 24. 24 Make Use of Host Aggregates
  • 25. 25 Let’s End with Some First Principles
  • 26. Nothing Is Forever in the Cloud 26
  • 27. Understand Your Workload 27
  • 28. Embrace Automation 28
  • 29. Current IT Culture Must Change 29
  • 30. Embrace Cultural Change 30
  • 31. 31 Perhaps Most Importantly
  • 32. Start With Why! 32
  • 33. 33 Resources and Contact
  • 34. 34 Resources • OpenStack Configuration Reference – http://docs.openstack.org/trunk/config-reference/content/section_computehypervisors.html • vSphere with OpenStack Blog Posts – http://cloudarchitectmusings.com/2013/06/24/openstack-for-vmwareadmins-nova-compute-with-vsphere-part-1/ – http://cloudarchitectmusings.com/2013/06/26/openstack-for-vmwareadmins-nova-compute-with-vsphere-part-2/ – http://cloudarchitectmusings.com/2013/07/09/openstack-compute-forvsphere-admins-part-3-ha-and-vm-migration/ – http://cloudarchitectmusings.com/2013/08/05/openstack-compute-forvsphere-admins-part-4-overcommitment-in-nova-compute/ – http://cloudarchitectmusings.com/2013/08/13/openstack-compute-forvsphere-admins-part-5-designing-for-vsphere-with-nova-compute
  • 35. For More Information You can reach me at: Kenneth Hui Open Cloud Architect Rackspace E-mail: ken.hui@rackspace.com Twitter: @hui_kenneth Blog: http://cloudarchitectmusings.com Slides: http://www.slideshare.net/kenhui65/ 35
  • 36. 36