HP-UX 11i v2 Installation and Update Guide, June 2007

Choosing an Installation Method
Online Diagnostics
Chapter 3 67
CAUTION Removing the OnlineDiag bundle or the SysFaultMgmt bundle, or both,
prevents products with dependencies on the diagnostics from functioning
correctly. If the OnlineDiag bundle or the SysFaultMgmt bundle are not
installed, then the protections from hardware failures are removed.
Without these bundles installed on your system, it is much harder to
troubleshoot and fix problems when a hardware failure occurs. To ensure
the reliability of your computer system, HP highly recommends that you
install the OnlineDiag and SysFaultMgmt bundles with HP-UX 11i v2.
With a media install, the OnlineDiag and SysFaultMgmt bundles are
installed by default with any HP-UX 11i Operating Environment.
The following lists the uses of tools contained in OnlineDiag and
SysFaultMgmt bundles:
• Protects your system from hardware failures, for example, memory
problems.
• Includes EMS Hardware Monitors that notifies you of hardware
events.
• Maintains logs that help you determine the cause of failures.
• Enables you to troubleshoot system problems with the system online.
On most systems, no special configuration of Online Diagnostics is
necessary. For complete information, refer to the diagnostics products
documents available at:
http://docs.hp.com/en/diag.html