// http://pve.proxmox.com/wiki/KVM
// http://pve.proxmox.com/wiki/Qemu_Server
-Qemu (short form for Quick Emulator) is an opensource hypervisor that emulates a
+Qemu (short form for Quick Emulator) is an open source hypervisor that emulates a
physical computer. From the perspective of the host system where Qemu is
running, Qemu is a user program which has access to a number of local resources
like partitions, files, network cards which are then passed to an
Qemu inside {pve} runs as a root process, since this is required to access block
and PCI devices.
+
Emulated devices and paravirtualized devices
--------------------------------------------
measured with `iperf(1)`. footnote:[See this benchmark on the KVM wiki
http://www.linux-kvm.org/page/Using_VirtIO_NIC]
+
Virtual Machines settings
-------------------------
Generally speaking {pve} tries to choose sane defaults for virtual machines
(VM). Make sure you understand the meaning of the settings you change, as it
could incur a performance slowdown, or putting your data at risk.
+
General Settings
~~~~~~~~~~~~~~~~
General settings of a VM include
* *Name*: a free form text string you can use to describe the VM
* *Resource Pool*: a logical group of VMs
+
OS Settings
~~~~~~~~~~~
When creating a VM, setting the proper Operating System(OS) allows {pve} to
clock to use the local time, while Unix based OS expect the BIOS clock to have
the UTC time.
+
Hard Disk
~~~~~~~~~
Qemu can emulate a number of storage controllers: