bridging the gap: explaining openstack to vmware ... · explaining openstack to vmware...
TRANSCRIPT
Bridging the Gap:Explaining OpenStack toVMware Administrators
Kenneth Hui, Open Cloud Architect, RackspaceScott Lowe, Engineering Architect, VMware
Before we start
•Get involved! Audience participation is encouraged and requested.
•Feel free to post updates to your social media platform of choice• I encourage you to take photos or videos of today’s session and share them online
•This presentation will be made available online after the event
•vSphere and OpenStack have very different origins•Those origins greatly influenced the resulting architectures
•vSphere originated as a way to provide virtualized infrastructure
•OpenStack originated as a way to provide consumable infrastructure services
Different origins
•Loosely coupled vs. tightly coupled (more on that in a moment)•API driven•Multiple hypervisors (KVM, Xen, vSphere, Hyper-V)
•See https://wiki.openstack.org/wiki/HypervisorSupportMatrix for more details
•Multiple disk formats (QCOW, RAW, VMDK...)• Integrated networking
Key architectural attributes
• Cloud instances are disposable• VMs are not unique• Tune and groom apps not the
cattle• Replace when necessary• Shoot the cattle when it is sick
Cattle vs. 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
Instance evacuation
•Without Shared Storage•The instance will be booted from a new disk, but will preserve the configuration, e.g. id, name, uid, ip...etc.
•With Shared Storage•The instance will be booted from same disk and data will be preserved
Evacuation!
Evacuation!
•Differences in how networking is handled really reflect the architectural differences in OpenStack and vSphere
•Networking in vSphere is a bit more separate•OpenStack networking is more integrated
Networking
Additional Resources
• OpenStack Configuration Reference• http://docs.openstack.org/trunk/config-reference/content/section_compute-
hypervisors.html• vSphere with OpenStack Blog Posts
• http://cloudarchitectmusings.com/2013/06/24/openstack-for-vmware-admins-nova-compute-with-vsphere-part-1/
• http://cloudarchitectmusings.com/2013/06/26/openstack-for-vmware-admins-nova-compute-with-vsphere-part-2/
• http://cloudarchitectmusings.com/2013/07/09/openstack-compute-for-vsphere-admins-part-3-ha-and-vm-migration/
• http://cloudarchitectmusings.com/2013/08/05/openstack-compute-for-vsphere-admins-part-4-overcommitment-in-nova-compute/
• http://cloudarchitectmusings.com/2013/08/13/openstack-compute-for-vsphere-admins-part-5-designing-for-vsphere-with-nova-compute
Additional Resources
•Dan Wendlandt’s session tomorrow at 11:15am “OpenStack + VMware: Customer Success Stories and What’s Next”
•My demo theatre session tomorrow at 2pm “Demo Theatre: What’s New with OpenStack & VMware in Havana?”
Thank you
Kenneth [email protected]@hui_kennethhttp://cloudarchitectmusings.com
Scott [email protected]@scott_lowehttp://blog.scottlowe.org