Oracle VM, User Manual

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C
Guest Configuration C-1
C
Guest Configuration
This Appendix contains information about guest network driver installation, guest
configuration file options and parameters, and examples of guest configuration files
you can modify and use to create guests. A detailed explanation of the configuration
parameters and common values is available in the /etc/xen/xmexample.hvm file in
Oracle VM Server.
Create the guest configuration file as /OVS/running_pool/ domain /vm.cfg and use the
following command to create the guest:
# xm create /OVS/running_pool/ domain /vm.cfg
This Appendix contains:
■
e100 And e1000 Network Device Emulators
■
Quality of Service (QoS)
■
Configuration File Example 1
■
Configuration File Example 2
C.1 e100 And e1000 Network Device Emulators
You can use the network device emulators for the Intel 8255x 10/100 Mbps Ethernet
controller (the
e100 controller) and the Intel 82540EM Gigabit Ethernet controller (the
e1000 controller) for hardware virtualized guests. The e1000 controller is a Gigabit
Ethernet controller and increases the network throughput when compared to the
default Ethernet controller.
To use these network device emulators, install the network device driver on the guest,
then modify the guest configuration file to specify the controller model type: either
e100
; or
e1000
. For example, to use the e1000 controller, set
model=e1000
in the
vif
entry in the guest configuration file:
vif = [ 'type=ioemu, mac=00:16:3e:09:bb:c6, bridge=xenbr2, model=e1000']
Create the guest again using the
xm create
command. The guest now uses the faster
e1000 controller.
C.2 Quality of Service (QoS)
Quality of Service (QoS) is the ability to provide varying priority to different
applications, users, or data flows, or to guarantee a level of performance to a data
flow. You can set virtual network interface and virtual disk QoS parameters for guests
running on an Oracle VM Server. Guest virtual network interfaces share a physical