Definitions
\nServer Virtualization Tools
\nVirtualization Workstation tools
\nVirtualized Ubuntu OS<\/p>\n
a. Multiple technologies exist:
\nb. Emulation
\nc. Binary Translation
\nd. Para-Virtualization
\ne. Containment
\nf. Multiple views
\ng. Server
\nh. Workstation
\ni. Virtual Machine<\/p>\n
Several states allow us to meet the requirements of the technology:<\/p>\n
Supported
\nMaintained
\nFree<\/p>\n
Various functions can be required:<\/strong><\/p>\n Migration Server Virtualization Platforms:<\/strong><\/p>\n OpenVZ The choice of Ubuntu for server Virtualization Functions:<\/strong><\/p>\n a) Migration Available for Ubuntu 12.04LTS, also for 8.04 Free, maintained by the community for the host most part, maintenance and Canonical Support limited to client mode.<\/p>\n Functions:<\/strong><\/p>\n a) Migration Free version of Virtuozzo (Parallels) Free, maintained by the community (Although not appropriate, as it has not updated since 8.04 LTS, not supported by Canonical.<\/p>\n Functions:<\/strong><\/p>\n a) Migration Technology containment Functions:<\/strong><\/p>\n a) Migration The host runs its own version of Linux Functions:<\/strong><\/p>\n a) Migration Technology binary translation (slower) Functions:<\/strong><\/p>\n a) Migration Developed by InnoTek, acquired by Sun<\/p>\n Open Source version (OSE) is not supported by Sun and does not provide:<\/p>\n USB Can use the extension of hardware Virtualization Free, unsupported VirtualBox OSE seems hypervisor workstation the most effective, and the only open source. JeOS – Just enough OS:<\/p>\n A specific kernel Benefits:<\/strong><\/p>\n a) Improved performance on identical hardware A command-line tool to create Virtualization for customers in less than 5 minutes Examples:<\/strong><\/p>\n a) Automated Creating Clients for hosts Additional Features: <\/strong>Improved KVM and Libvirt:<\/strong><\/p>\n PCI shortcut Ubuntu Enterprise Cloud:<\/strong><\/p>\n AMI Eucalyptus Project UCSB, modified to use KVM<\/p>\n Open Nebula (from the Reservoir project) will ultimately:<\/strong><\/p>\n a) Dynamic Deployment Definitions Server Virtualization Tools Virtualization Workstation tools Virtualized Ubuntu OS Definitions: a. Multiple technologies exist: b. Emulation c. Binary Translation d. Para-Virtualization e. Containment f. Multiple views g. Server h.…<\/p>\n
\nLive Migration
\nSnapshot
\nBackup and Restore
\nDynamic Allocation
\nDynamic Deployment
\nNested Virtualization
\nPCI Shortcut<\/p>\n
\nXen
\nKVM
\nVMWare
\nLinux vServer<\/p>\nKVM (Kernel Virtual Machine):<\/strong><\/h4>\n
\nThe most effective technology
\nNo special kernel required
\nEasier to maintain (fewer lines of code)
\nIncludes optimizations Virtio for the supporting OS
\nVirtualization requires hardware support
\nAll processors with AMD-V or Intel-VT
\nFree (in the kernel), maintained and supported<\/p>\n
\nb) Backup \/ Restore
\nc) Dynamic Allocation
\nd) Can be controlled from libvirt (virt-manager)<\/p>\nXen:<\/strong><\/h4>\n
\nPara-Virtualization or Virtualization
\nSupports most OS with AMD-V or Intel VT
\nOnly modified Para-Virtualization OS
\nRequires a specific kernel (huge patches included in the slow kernel)<\/p>\n
\nb) Backup \/ Restore
\nc) Dynamic Allocation
\nd) Can be controlled from libvirt (virt-manager)<\/p>\nOpenVZ:<\/strong><\/h4>\n
\nTechnology Containment
\nRequires a specific kernel
\nHigh efficiency
\nLow dissipation
\nHigh density of customers<\/p>\n
\nb) Live Migration
\nc) Snapshots
\nd) Dynamic Allocation<\/p>\nVServer:<\/strong><\/h4>\n
\nRequires a specific kernel
\nHigh efficiency
\nLow dissipation
\nHigh density of customers
\nFree, maintained by the community, not supported by Canonical<\/p>\n
\nb) Backup \/ Restore<\/p>\nVMWare ESXi:<\/strong><\/h4>\n
\nFree product call for the (very comprehensive, but expensive) range of management tools
\nUbuntu 12.04 is certified as a VMware client
\nManagement Console on Windows
\nFree, supported by VMWare<\/p>\n
\nb) Live Migration
\nc) Snapshots
\nd) Backup \/ Restore
\ne) Dynamic Allocation
\nf) Dynamic Deployment
\ng) The most comprehensive set of Virtualization, if you can afford it …<\/p>\nVMWare Server:<\/strong><\/h4>\n
\nWorks in user space (no special kernel)
\nMainly used for testing (small plants)
\nFree, unsupported<\/p>\n
\nb) Snapshots<\/p>\nVirtualBox:<\/strong><\/h4>\n
\nRDP
\nUSB over RDP
\nSATA
\niSCSI
\nCan use hardware Virtualization extensions
\nDoes not require special kernel (module available with DKMS)
\nAbility to use VirtualBox VDI<\/p>\nParallels Workstation:<\/strong><\/h4>\n
\nDoes not require special kernel
\nNot open source, paid, supported and maintained by Parallels
\nSupport USB and sound<\/p>\nVMWare Player:<\/strong><\/h4>\n
\nDoes not require special kernel (module)
\nCan be used to create a new VM<\/p>\nSummary:<\/strong><\/h5>\n
\nTo make VDI VirtualBox Enterprise is a satisfactory solution, compared with KVM + No Machine NX
\nKVM and \/ or Xen allow for the Virtualization workstation, but with much less comfort (interactions, functions)
\nVMWare Server is often used to make the Virtualization of Computer.<\/p>\n
\nA minimal installation
\n100 MB of packets to install
\n300 MB installed<\/p>\n
\nb) Smaller footprint (less RAM and disk)
\nc) Fewer updates (because fewer packets)
\nd) Thousands of appliances already built with JeOS
\ne) Note: since Ubuntu 8.10 JeOS is an option to install the server.<\/p>\nVmbuilder:<\/strong><\/h4>\n
\nSupports: KVM, Xen, VMWare, VMWare ESX (12.04)
\nAlmost everything is configurable<\/p>\n
\nb) Includes a script to make ISVs
\nc) Used for rapid deployment and parallel environment in the Grid<\/p>\n
\nDynamic Migration
\nKSM: shared use of the same memory block
\nRemove the bottleneck of Disk IO with Virtio
\nCloud Computing
\nUbuntu Enterprise Cloud<\/p>\n
\nS3
\nEBS<\/p>\n
\nb) Migration inter cloud
\nc) Migration inter cloud<\/p>\n","protected":false},"excerpt":{"rendered":"