With HP-UX 11i, HP delivers a highly available, secure, and
manageable operating system that meets the demands of end-to-end
Internet-critical computing. HP-UX 11i supports enterprise, mission-critical,
and technical computing environments. HP-UX 11i versions 1 and 2
are available on PA-RISC systems and HP-UX 11i version 2 is available on
Itanium®-based systems.
HP-UX 11i v1 provides new hardware enablement, additional
software functionality, and various HP-UX applications bundled into Operating
Environments: integrated and tested software solutions
containing the operating system and selected applications.
The performance of HP servers and applications with the HP-UX
11i v1 Operating Environments is as good or better as compared to
HP-UX 11.0 installed in the same configuration. It must be kept
in mind, however, that in the vast majority of cases, HP-UX is likely
to be installed as part of one of the predefined HP-UX 11i Operating Environments.
The HP-UX 11i v1 Operating Environments provide numerous benefits,
including lower cost as well as simplification of product ordering,
installation, integration, and support. While the HP-UX 11i v1 Operating
Environments provide these desirable benefits, they all involve
more software components and daemons than a base HP-UX 11.0 or HP-UX 11i
operating system. Because of this, an Operating Environment may
have somewhat greater system overhead compared to a base operating
system installation. This increase in system overhead, while modest,
can nevertheless make it erroneously appear that system and application
performance are degraded with HP-UX 11i v1 as compared to HP-UX
11.0. In fact, performance with HP-UX 11i v1 is generally better
than HP-UX 11.0 when the software configurations are the same.
While not recommended, one of the options for installing HP-UX
11i v1 is as a base operating system only, without an Operating
Environment. Installing HP-UX 11i v1 as a base operating system
will give the greatest performance and the lowest system overhead
but eliminates the advantages provided by the HP-UX 11i Operating Environments.
For more information on the Operating Environments, see “HP-UX
11i v1 Operating Environments”.
For information on disk and memory requirements, consult the HP-UX
11i Installation and Update Guide, available in the
media kit, on the Instant Information media, and at the HP Documentation
Web site at http://docs.hp.com/en/oshpux11i.html.
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