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 is available on
both PA-RISC systems and Itanium®-based
systems.
HP-UX 11i version 1 provides new hardware enablement, additional
software functionality, and various HP-UX applications bundled into
Operating Environments. HP-UX 11i version 1 is the recommended next-level
enterprise release for all HP-UX systems currently running HP-UX
10.x or 11.0.
See the HP-UX 11i Installation and Update Guide for
information on disk and memory requirements.
HP-UX 11i
Release Names and Release Identifiers |
 |
Each HP-UX 11i release has an associated release name and
release identifier. The uname(1) command with the -r option
returns the release identifier. The following table shows the releases
available for HP-UX 11i.
Table 3-1 HP-UX 11i Releases
| Release Identifier | Release Name | Supported Processor Architecture |
|---|
B.11.11 | HP-UX 11i v1 | PA-RISC |
B.11.20 | HP-UX 11i v1.5 | Intel® Itanium® |
B.11.22 | HP-UX 11i v1.6 | Intel® Itanium® |
B.11.23 | HP-UX 11i v2 | Intel® Itanium® |
Performance Considerations |
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The performance of HP servers and applications with the HP-UX
11i 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 Operating Environments provide numerous benefits,
including lower cost as well as simplification of product ordering,
installation, integration, and support. While the HP-UX 11i 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 as compared to HP-UX 11.0.
In fact, performance with HP-UX 11i 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 is as a base operating system only, without an Operating Environment.
Installing HP-UX 11i 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.
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