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  2. Live migration - Wikipedia

    en.wikipedia.org/wiki/Live_migration

    Post-copy sends each page exactly once over the network whereas pre-copy can transfer the same page multiple times if the page is dirtied repeatedly at the source during migration. On the other hand, pre-copy retains an up-to-date state of the VM at the source during migration, whereas during post-copy, the VM's state is split across the source ...

  3. VMware VMFS - Wikipedia

    en.wikipedia.org/wiki/VMware_VMFS

    There are six (plus one for vSAN) versions of VMFS, corresponding with ESX/ESXi Server product releases. VMFS0 can be reported by ESX Server v6.5 as a VMFS version when a datastore is unmounted from a cluster/host. VMFS1 was used by ESX Server v1.x. It did not feature the cluster filesystem properties and was used only by a single server at a time.

  4. Migration (virtualization) - Wikipedia

    en.wikipedia.org/wiki/Migration_(virtualization)

    In the context of virtualization, where a guest simulation of an entire computer is actually merely a software virtual machine (VM) running on a host computer under a hypervisor, migration (also known as teleportation, [1] also known as live migration) is the process by which a running virtual machine is moved from one physical host to another, with little or no disruption in service.

  5. List of file copying software - Wikipedia

    en.wikipedia.org/wiki/List_of_file_copying_software

    This article provides a list of inbuilt and third party file copying and moving software - utilities and other software used, as part of computer file management, to explicitly move and copy files and other data on demand from one location to another on a storage device. File copying is a fundamental operation for data storage.

  6. System virtual machine - Wikipedia

    en.wikipedia.org/wiki/System_virtual_machine

    A virtual machine is less efficient than an actual machine when it accesses the host hard drive indirectly. When multiple VMs are concurrently running on the hard drive of the actual host, adjunct virtual machines may exhibit a varying and/or unstable performance (speed of execution and malware protection).

  7. VirtualBox - Wikipedia

    en.wikipedia.org/wiki/VirtualBox

    The proprietary extension pack adds a USB 2.0 or USB 3.0 controller and, if VirtualBox acts as an RDP server, it can also use USB devices on the remote RDP client, as if they were connected to the host, although only if the client supports this VirtualBox-specific extension (Oracle provides clients for Solaris, Linux, and Sun Ray thin clients ...

  8. File copying - Wikipedia

    en.wikipedia.org/wiki/File_copying

    In digital file management, copying is a file operation that creates a new file which has the same content as an existing file. Computer operating systems include file copying methods to users; operating systems with graphical user interfaces ( GUIs ) often providing copy-and-paste or drag-and-drop methods of file copying.

  9. VHD (file format) - Wikipedia

    en.wikipedia.org/wiki/VHD_(file_format)

    VHDs are implemented as files that reside on the native host file system. The following types of VHD formats are supported by Microsoft Virtual PC and Virtual Server: Fixed hard disk image: a file that is allocated to the size of the virtual disk. Fixed VHDs consist of a raw disk image followed by a VHD footer (512 or formerly 511 bytes). [2]