Compaq ProLiant ML570 Maintenance And Service Manual page 139

3-62 Compaq ProLiant ML570 Maintenance and Service Guide
Compaq Health Driver
The Compaq Health Driver continually resets the ASR-2 timer according to the frequency
specified in the System Configuration Utility (for example, 10 minutes). If the ASR-2 timer
counts down to zero before being reset, due to an operating system or a server lockup, ASR-2
restarts the server into either Compaq Utilities or the operating system (as indicated by the
System Configuration parameters). The default value is 10 minutes. The allowable settings are
5, 10, 20, and 30 minutes.
For remote and offsite (unattended) servers, setting the software error recovery timeout for
5 minutes reduces server downtime and allows the server to recover quickly. For local
(attended) servers located onsite, you can set the software error recovery timeout for
20 or 30 minutes, giving you time to arrive at the server if you wish to manually diagnose the
problem.
The Compaq Health Driver is independent of the ASR-2 timer. Load the health driver and
enable the ASR-2 timer. Enabling the ASR-2 timer allows the driver to detect and log
information into the IML regarding numerous hardware and software errors. However, you
cannot enable the ASR-2 timer without loading the Compaq Health Driver.
Before ASR-2 restarts the server, it records any information available about the condition of the
operating system in the Critical Error Log or the IML depending on the server support. This
information can be used to diagnose an operating system crash or server lockup, while still
allowing the server to be restarted.