HP-UX HB v13.00 Ch-18 - HPVM

HP-UX Handbook – Rev 13.00 Page 6 (of 49)
Chapter 18 Integrity Virtual Machines (HPVM)
October 29, 2013
Integrity Virtual Machines is a soft partitioning and virtualization technology that provides
operating system isolation, with sub-CPU allocation granularity and shared I/O.
I/O Resources
Networking
For the guest to communicate outside the VM Host system, each guest virtual network must be
associated with a virtual switch (vswitch). For each network adapter accessible to a guest, you
must create a vswitch. A vswitch functions like a physical network switch, accepting network
traffic from one or more virtual machines and directing network traffic to an associated port. A
vswitch can be associated with a VM Host physical network device (APA is supported), or it can
be local to the virtual machines on the VM Host, providing a local network between guests
(hpvmcreate / hpvmmodify).
You create a virtual switch using the hpvmnet command. You can also restrict physical network
devices to use by the VM Host only.
Integrity VM always creates a vswitch named localnet. This network is not associated with a
physical interface. It is used only for communication between the guests running on the same
VM Host. This interface does not use a name server or router, and the VM host does not access
the localnet.
Integrity VM virtualizes the Intel Gigabit Ethernet card. The guest OS configures its own virtual
network interface with an IP address using standard commands and utilities. It can also use
DHCP.
Storage
Integrity VM supports a variety of virtual and attachable devices. Disk and DVD-ROM devices
have been virtualized to support several virtual media types. Physical tapes, media changers, and
CD/DVD burners are attachable; they can be used to perform data backups directly from a
virtual machine
Integrity VM supports the following virtual disk types:
Virtual Disk: emulated SCSI disk whose media comes from a VM Host disk LUN.
Virtual PartDisk: emulated SCSI disk whose media comes from a VM Host disk partition
(idisk) (NOTE: Usage as been deprecated as of HPVM release A.03.05)
Virtual LvDisk: emulated SCSI disk whose media comes from a VM Host logical volume.
Virtual FileDisk: emulated SCSI disk whose media comes from a VM Host file (hpvmdevmgmt).