HP-UX Virtual Partitions 6.0 Administrator Guide

IMPORTANT: vPars commands are not available on the OA, the iLO, or from within the virtual
partition.
Dedicated cores and memory
This component allows you to provide dedicated processing cores and memory for each vPar. It
enables you to add and remove cores from running vPars using CLI and the GUI that is accessible
from the HP SMH of the VSP. This component is locality aware and allocates the best available
CPUs and memory for vPars when the vPar is started, and makes it easier to configure vPars.
Shared I/O
The shared I/O enables storage HBAs and NICs to be shared between vPars. In the new design,
there is no longer a constraint on the number of vPars per system imposed by slot limitations. This
component ensures lower overhead and higher performance than on virtual machines.
Shared networking provides configuration flexibility and the vswitch provides for the communication
between vPars and other systems on the network. The vswitch enhances the utilization of NICs as
it enables the bandwidth of the NICs to be shared between vPars.
NPIV provides storage isolation for shared storage. Without NPIV, individual LUNs are visible
from the VSP and the vPar to which it has been configured. With NPIV the individual LUNs are
not visible from the VSP. A physical HBA is shared by creating multiple fibre channel initiators
using different NPIV ports. In addition, shared storage enables assignment of individual LUNs just
like in the virtual machines. Overall, the shared infrastructure serves to reduce cost. For information
about configuring NPIV, see the relevant NPIV sections in this guide.
NOTE: Sharing an AVIO backed disk between vPars is not supported.
Virtual iLO Remote Console
This component provides separate console for each vPar, a console accessible from anywhere on
the network via both secure shell and telnet (see the -K and -L options of vparcreate and
vparmodify.
10 How vPars v6.0 and its components work