HP-UX 11i March 2002 Release Notes

Overview of the HP-UX 11i Release
What’s HP-UX 11i?
Chapter 1
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What’s HP-UX 11i?
HP-UX 11i provides new hardware enablement, additional software functionality, and
various HP-UX applications bundled into Operating Environments. HP-UX 11i 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.
Performance Considerations
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.
The HP-UX 11i Operating Environments (OE)
new at 11i
original release
Beginning with HP-UX 11i, the operating system is delivered as part of an HP-UX
Operating Environment (OE), an integrated and tested software solution containing the
operating system and selected applications.
The following software bundles are always delivered with an Operating Environment.
Thus, if you do a minimum install, these bundles, plus the HP-UX applications within
each OE, will be loaded:
• HPUXBase32 or HPUXBase64, which consist of operating system commands and
libraries bundled for either 32- or 64-bit systems.
• HPUXBaseAux, which includes system manageability software such as Software
Distributor (SD) and the Partition Manager (parmgr). This additional required core
software is also referred to as the Auxiliary OS.