HP UX vPars and Integrity VM v6 manual See also core

host	1. The VM Host, which is the controlling operating system that allows multiple virtual machines
	(VMs) to be booted on a single server or nPartition.
	2. A system or partition that is running an instance of an operating system.
Integrity VM	HP Integrity Virtual Machines. The HP product that allows you to install and run multiple systems
	(virtual machines) on the same physical host system.
legacy addressing	The storage device addressing model that uses the device special file (DSF) path as defined in
	HP-UX 11i v2 and earlier versions. In contrast to the agile addressing model introduced with
	HP-UX 11i v3, the legacy device special file (DSF) is bound to a specific hardware path to a
	storage device. For this reason, a device with multiple paths is represented by several legacy
	DSFs. If the physical storage device is reconnected to a host through a different host bus adapter
	(HBA) or a different target port, the address represented by the DSF is affected, requiring
	reconfiguration of applications, volume managers, or file systems. Likewise, if additional paths
	are offered to a given LUN (through the addition of a new SCSI controller or new SCSI target
	paths), an equal number of additional DSFs are required to address them.
	See also agile addressing.
localnet	A vswitch created by default when Integrity VM is installed on a VM Host. The local network
	created by this vswitch can be used for communications among guests but not for communication
	between the VM Host and any guest or between any external system and a VM guest.
managed node	A system running under HP Systems Insight Manager/HP Matrix Operating Environment. Systems
	become managed nodes through the Systems Insight Manager discovery mechanism.
managed system	See managed node.
MSE group	Multiserver Environment group. A set of Integrity VM servers can be grouped into an Integrity
	VM MSE group, as required when a set of Integrity VM servers is also configured as a
	Serviceguard cluster.
NIC	Network interface card. Also called LAN card, LAN adapter, or PPA.
nPartition	A partition in a cell-based server that consists of one or more cells, and one or more I/O chassis.
	Each nPartition operates independently of other nPartitions and either runs a single instance of
	an operating system or is further divided into virtual partitions.
	nPartitions can be used as compartments managed by Global Workload Manager (gWLM) as
	long as several requirements are met. Refer to the gWLM online help for a description of nPartition
	requirements.
processor	Also referred to as the central processor unit (CPU), a processor is the hardware component in
	a computer that processes instructions and plugs into a processor socket. A processor can contain
	more than one core.
	See also core.
Serviceguard	HP Serviceguard. A product that allows you to create high-availability clusters of HP 9000 or HP
	Integrity servers. By installing Serviceguard on an HP Integrity VM Host system, Serviceguard can
	manage Integrity VM virtual machines as Serviceguard packages. A Serviceguard package
	groups application services (individual HP-UX processes) together and maintains them on multiple
	nodes in the cluster, making them available for failover. When the VM Host system fails, the
	guests automatically fail over to another node in the Integrity VM multiserver environment (MSE
	group). By installing Serviceguard on HP Integrity guests, each guest becomes a Serviceguard
	cluster node. When a virtual machine fails, the guest applications can fail over to another guest
	configured as a Serviceguard node or to another server or partition.
shared vswitch	A vswitch that can be used by more than one active virtual machine.
Utilization Provider	The WBEM services provider for real-time utilization data from managed systems.
vCPU	Virtual CPU. A single-core virtual processor in a virtual machine.
	See also core, processor.
virtual CPU	See vCPU.
virtual machine	A software entity provided by HP Integrity Virtual Machines. This technology allows a single
	server or nPartition to act as a VM Host for multiple individual virtual machines, each running its
	own instance of an operating system (referred to as a guest OS). Virtual machines are managed

122 Glossary