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Choosing a Migration Path
Deciding Which Method to Use
Chapter 236
Deciding Which Method to Use
Now that you have evaluated your system and ordered any additionally
needed hardware, you need to decide whether to cold-install or update
to HP-UX 11i v2 on your system.
Cold-installing using Ignite-UX — This method overwrites
everything on the target disk. Use cold-install for new systems and on
existing systems when overwriting the root (/) volume will not cause loss
of applications or data. The process described in this guide cold-installs a
single system from local media. If you plan to install many systems
simultaneously, you should plan on using an Ignite-UX server. Ignite-UX
is available on the HP-UX 11i v2 DVD. Additional information on
Ignite-UX and newer versions are available on this web site:
http://software.hp.com/products/IUX
Updating using Update-UX — This method uses the update-ux
command and Software Distributor (SD) tools to selectively overwrite
the operating system and application software from media or a network
source depot. An advantage of performing an update is that it leaves user
data, configuration, and applications in place. Updating to HP-UX 11i v2
is limited to the supported paths listed in Table 2-1, “OE Update
Migration Paths to HP-UX 11i v2,” on page 34.
Depending on your system’s current configuration, here are some
general guidelines to help you choose the best migration path to HP-UX
11i v2.
When to Cold-Install
We recommend using Ignite-UX to cold-install HP-UX 11i v2 in the
following situations:
• You are managing several systems with similar OS configurations.
• You need fast, predictable deployment.
• Your disk space needs reconfiguration. See “How to Plan Your Disk
Space Needs” on page 55.
• Your systems are organized with clean separation of the OS from
user, application, and data files.