HP vPars and Integrity Virtual Machines V6.1 Administrator Guide

6 Creating virtual partitions
To create virtual partitions, you must run appropriate commands from the VSP or use the HP-UX
Integrity Virtual Server Manager, the GUI application that can be accessed from the Tools page
in HP SMH of the VSP.
This chapter discusses the various tasks that can be performed from the VSP using commands. For
tasks you can perform using the GUI, see the HP-UX Integrity Virtual Server Manager Help that
comes with the GUI application.
CAUTION: In V6.1, HP supports a vPar only or VM only environment, though creation of one
type of virtual server when the other type already exists might be allowed by Integrity VM commands
in some cases. You are strongly advised not to attempt creation of mixed vPar/VM configurations.
A configuration of mixed vPars and VMs is not supported and might lead to unexpected behavior.
NOTE: In V6.1, Integrity VM commands also support configuration and management of vPars.
You can choose Integrity VM commands or vPar commands based on your familiarity with the type
of command.
Using NPIV HBAs generates virtual WWNs, and administrators are responsible for tracking WWNs
and guaranteeing their uniqueness across the Storage Area Network (SAN). The GUIDMgr provides
a mechanism to manage unique WWNs, so that the same name is not re-allocated until freed, to
avoid potential data corruption when Logical Storage is presented to multiple vPars by mistake.
The GUIDMgr helps accomplish this task.
GUIDMgr is integrated with vPars V6.1 to support NPIV, and it is also integrated with HP Integrity
Virtual Server Manager to support managing the database.
6.1 Creating a virtual partition
When you create a virtual partition, you must specify its attributes. Later you can change these
characteristics.
You can set the attributes of a virtual partition using the following commands:
• vparcreate, which creates new virtual partitions.
• vparmodify, which modifies the existing virtual partitions.
Both these commands accept the same options for specifying the attributes of a virtual partition.
Table 10 (page 60) describes each characteristic and command option.
NOTE: When you use the vparcreate command to create a vPar, by default it reserves any
resources assigned to that vPar, even when the vPar is off. For more information about reserved
resources, see “Reserved resources and resource over-commitment” (page 68). Additionally, the
vPar is set to AutoBoot when the VSP is restarted. You can use the hpvmmodify -B command to
adjust the AutoBoot setting.
6.1 Creating a virtual partition 59