HP-UX Virtual Partitions Release Notes (A.04.06)

vPars A.04.06 Release Notes
This document provides information about the HP-UX Virtual Partitions (vPars) A.04.06 release.
vPars Overview
The HP-UX Virtual Partitions (vPars) product runs multiple instances of HP-UX simultaneously
on one server, or nPartition, by dividing it into virtual partitions. Each virtual partition is assigned
its own subset of hardware, runs a separate instance of HP-UX, and hosts its own set of
applications. vPars provides application and operating system fault isolation.
New and Changed Features in This Release
This section lists features that are new in this release, or previously available features that have
changed in this release.
New Features
The following features are new with the vPars A.04.06 release:
• Enhanced dynamic vPars support with Oracle Real Application Clusters (RAC) on HP 9000
PA-RISC servers
NOTE: This functionality is already available on vPars A.04.04 for Integrity servers.
• PCIe SAS support and tape recovery feature on Integrity servers
vPars A.04.06 on HP Integrity platforms enables you to use SAS disks as boot devices in
vPars environment.
IMPORTANT: In certain situations while using vPars with SAS disks as boot disk on HP
Integrity platforms, the vparstatus -v and setboot commands may show different
boot disk paths in vPars mode. This behavior is normal, and is due to the disks being scanned
in a different sequence at boot time. This behavior also occurs when you boot into nPars
mode and then boot back in vPars mode.
For example:
1. A virtual partition is ignited from a SAS disk and booted in vPars mode, and the
vparstatus -v command displays the boot disk path as A.
2. If the system is booted back to nPars mode, the boot path may change to B, which is
different from A due to a different scan order. This would also change the boot path to
B in the vPars database (/stand/vpdb).
3. After booting back to vPars mode, the vparstatus -v command for this virtual
partition shows B as the boot path and the setboot command still shows A. Both boot
paths (A and B) refer to the same SAS disk path.
Compatibility and Installation Requirements
This section describes the compatibility information and installation requirements for this release.
For specific installation instructions, see the HP-UX Virtual Partitions Administrator's Guide.
Required Patches
Version A.04.06 of vPars requires the following patches:
• From HP-UX 11i v2 (11.23) release June 2007 OE:
vPars Overview 5