1. Lars Kurth Community Manger, Xen Project Chairman, Xen Project Advisory Board Director, Open Source, Citrix lars_kurth

2. Was a contributor to various projects Worked in parallel computing, tools, mobile and now virtualization Long history in change projects Community guy at Symbian Foundation Learned how NOT to do stuff Community guy for the Xen Project Working for Citrix Accountable to Xen Project Advisory Board Chairman of Xen Project Advisory Board

4. Stability is Paramount Value of IT: consistent service availability Service capacity specified a year or more in advance What’s up, stays up Change is Bad Change to status quo is disruptive and dangerous

5. Availability of Services is Paramount Value of IT: consistent service availability matching dynamic business demand Service capacity must move with business needs What’s up when depends on what’s needed when Change is Good Services must change to cover the needs of the moment Lack of change = lack of value

6. It must be stable It must be secure It must be configurable on a large scale It must take orchestration It must be multi-tenant

8. An Open Source Hypervisor > 10M Users Powering some of the biggest Clouds in Production Amazon Web Services, Rackspace Public Cloud, Terremark, … Several sub-projects Xen Hypervisor, XAPI management tools, Mirage OS Linux Foundation Collaborative Project Sponsored by Amazon Web Services, AMD, Bromium, Calxeda, CA Technologies, Cisco, Citrix, Google, Intel, NetApp, Oracle, Samsung and Verizon 10 years old

9. with a twist

10. VM 2 VM n Applications Guest OS Applications VM 1 (or DomU) Applications Guest OS VM 0 (or Dom0) Toolstack Dom0 Kernel HW CPUsMemoryI/O SchedulerMMU TimersInterruptsConfig

11. VM 2 VM n Applications Guest OS Applications VM 1 (or DomU) Applications Guest OS VM 0 (or Dom0) Toolstack Dom0 Kernel HW CPUsMemoryI/O Drivers SchedulerMMU TimersInterruptsConfig backPV front

12. VM 2 VM n Applications Guest OS Applications VM 1 (or DomU) Applications Guest OS VM 0 (or Dom0) Toolstack Dom0 Kernel HW CPUsMemoryI/O QEMU SchedulerMMU TimersInterruptsConfig

13. DomU Dom0

16. Service VM Guest OS Dom0 Toolstack Dom0 Kernel HW CPUsMemoryI/O SchedulerMMU TimersInterruptsConfig Driver(s) QEMU Disaggregation

17. Service VM Guest OS Dom0 Toolstack Dom0 Kernel HW CPUsMemoryI/O SchedulerMMU TimersInterruptsConfig QEMU

19. Single Host Basic Functions Multiple Hosts Additional Functionality Multiple Hosts More Functionality Increased level of functionality and integration with other components Toolstack / Console HypervisorHypervisor Xen Hypervisor XAPI / XE Default / XL Libvirt / VIRSH

20. Xen XAPI

21. XAPI / XE Default / XL Xen Hypervisor Toolstack / Console HypervisorHypervisor Libvirt / VIRSH

22. It must be stable It must be secure It must be configurable on a large scale It must take orchestration It must be multi-tenant AWS, Rackspace Public Cloud, Terremark, many others … Tons of features: see tinyurl.com/xen-secure Puppet, Chef, Salt, … − GUIs − APIs − Orchestration Apache CloudStack, OpenNebula, OpenStack, … Pools and other functionality in XAPI

24. DOM0 VM 1 VM n Guest OS Applications QEMU Drivers XS Tools XAPI 3 rd party Components 3 rd party Components HA Storage Mgr

25. DOM0 VM 1 VM n Guest OS Applications QEMU Drivers XS Tools XAPI 3 rd party Components 3 rd party Components HA Storage Mgr

26. DOM0 QEMU Drivers XAPI 3 rd party Components 3 rd party Components HA Storage Mgr Virtualization Base Packages (Xen, QEMU, Libvirt) xenserver-core package (XAPI, Storage Manager, …) (Currently excluding 3 rd party stuff) Base Distro (CentOS, Debian, Ubuntu)

28. Source: http://fr.slideshare.net/openstack/havana-survey-resultsfinal-19312081 (before Xen Project and OSS XenServer)

29. Not on Feature and Quality parity yet Significant progress in Havanah / 13.2 Xen and XAPI not perceived to be Open Source This is now different Citrix backing of Apache CloudStack Created “confusion” in the marketplace Created resentment by OpenStack developers

30. Source: https://wiki.openstack.org/wiki/HypervisorSupportMatrix Group A (Fully Supported) Most Features Group A (Fully Supported) Most Features KVM/QEMU + LIBVIRT Group B (Gate Tested) Missing: Volume Swap Volume Rate Limiting XEN + XAPI Group C (Minimal Testing) Missing: See table Group C (Minimal Testing) Missing: See table All the others Xen + LIBVIRT TBD Significant Investment

31. Source: http://docs.openstack.org/trunk/openstack-compute/install/yum/content/introduction-to-xen.html

32. Source: https://wiki.openstack.org/wiki/XenServer/DevStack DevStack: Script to set up OS VM Also adds: Swift Glance Horizon

33. Havanah 2013.2: OpenStack support for xenserver-core More Tests; Improved Quality (moving towards Group A) Icehouse 2014.1 Feature catch-up (not in one go) ARM support for xenserver-core Expanding VGPU Functionality Desktop and Enterprise Features

34. Impact: OpenStack can also run in Dom0 Closer to OpenStack Usage Model Closer to OpenStack Development Model More Deployment Options (Security)

35. Alive and kicking

36. Developer list traffic : Q3 2003 - now

39. Xen is a great solution for the Cloud Significant Investment in XAPI + OpenStack As well as CloudStack The Xen Community is accelerating

41. More info at: xenproject.org events.linuxfoundation.org/events/xen-project-developer-summit

42. Please rate the talk on slideshare or twitter www.slideshare.net/xen_com_mgr/

43. Segoe UI LightSegoe UI Semibold For all Product Names Segoe UI LightSegoe UI Semibold For all Product Names Flickr: “Giant Sequoia Trees” by RajRaj Wikipedia: “Bodium Castle” by Antony McCallum Other Images: By Lars Kurth or acquired Xen Project: www.xenproject.org wiki.xenproject.org lists.xenproject.org xenbits.xenproject.org @xen_org ##xen