HP Integrity Virtual Machines 4.2: Installation, Configuration, and Administration

2.3.1 Study the Current HP-UX 11i v2 to HP-UX 11i v3 Update Documentation
The first stage of upgrading an Integrity VM V3.0 or V3.5 server to an Integrity VM V4.2 server
is to review the following HP–UX 11i v3 operating system update documents:
• Mass Storage Update Guide
• Read Before Installing or Upgrading
• HP-UX 11i v3 Installation and Update Guide
• HP-UX 11i Version 3 Release Notes
• Serviceguard Specific Documentation
The following websites provide a general reference covering the features and hardware supported
in HP-UX 11i v3. Read these documents and become familiar with the information before
beginning the upgrade procedure.
• QuickSpecs for HP-UX 11i v3 Update 2 features and operating environments
• Upgrading to HP-UX 11i v3
As you are reading, pay particular attention to the new mass storage model, called the agile
device reference model , for naming and identifying devices. The 11i v2 model is called the legacy
device reference model. The new agile device model uses worldwide device identifiers (WWIDs)
to identify devices. The WWID is a device attribute that is independent of the device’s location
in a SAN or in an adapter/controller access path. Therefore, the agile device names are persistent
with respect to changes in the access path and can utilize multiple paths through a single device
name.
The legacy devices require multiple device names to access the same device through multiple
paths. Many Integrity VM customers use multipath solutions such as Secure Path, which allow
them to use a single device name to access all paths. Some of these 11i v2 multipath solutions
will continue to work, while others you must remove. The general solution for this particular
problem is to replace the existing multipath device with the new agile device name, with its
inherent multipath support, once the upgrade has completed.
NOTE: Dynamic Root Disk (DRD), an HP-UX system administration toolset, is available to
clone an HP-UX system image to an inactive disk for software maintenance or recovery. The
bundle name is DynRootDisk and the product name is DRD. Administrators can use DRD to
reduce downtime for system maintenance by creating an inactive clone of the booted system,
then applying patches and products to the clone. The modified clone can then be booted at a
convenient time. DRD is available for download from a software depot. For information about
HP-UX Dynamic Root Disk, see http://docs.hp.com/en/DRD.
2.3.2 Analyze HP-UX 11i v2 based Integrity VM Server
Analyzing HP-UX 11i v2 based Integrity VM server is the most important stage of the Integrity
VM server upgrade. During this analysis, it is important to discover any incompatible hardware
and software subsystems. You can use the HP-UX 11i v2 to 11i v3 Mass Storage Check Utility
(msv2v3check ) and the Integrity VM hpvmupgrade tool to assist in the analysis.
The msv2v3check tool is free software provided on the http://software.hp.com website. Go to
this website, search for msv2v3check, and download this free tool.
The hpvmupgrade tool is provided with Integrity VM V4.2. Use one of the following ways to
obtain this tool:
• Download VMGuestLib from the http://software.hp.com website and follow the instructions
documented there.
• Install VMGuestLib from HP-UX 11i v2 AR media, September 2008 or later.
These analysis utilities are aimed primarily at mass storage problems and problems that are
specific to existing virtual machines. In most cases, you can take actions to resolve these
incompatibilities before doing the upgrade, such as loading new firmware. Other solutions might
2.3 Upgrading the VM Host from Previous Versions of Integrity VM V3.X to Integrity VM V4.2 33