HP-UX 11i v3 Installation and Update Guide, February 2007 (Initial Release)

Choosing an Installation Method
Online Diagnostics
Chapter 3 59
•EMT
EMT enables you to view most errors that can occur on HP-UX 11i v3
systems. It also provides probable cause for errors, and recommended
actions.
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, protections from some 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 v3.
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