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You can access this service aid directly from the AIX command line, by typing:
/usr/lpp/diagnostics/bin/uspchrp -r
Configure Scan Dump Policy
Configure Scan Dump Policy allows the user to set or view the scan dump policy (scan dump control and
size) in NVRAM. Scan Dump data is a set of chip data that the service processor gathers after a system
malfunction. It consists of chip scan rings, chip trace arrays, and Scan COM (SCOM) registers. This data
is stored in the scan-log partition of the system's Nonvolatile Random Access Memory (NVRAM).
Use this service aid to display and change the following settings for the Scan Dump Policy at run time:
v Scan Dump Control (how often the dump is taken)
v Scan Dump Size (size and content of the dump)
The Scan Dump Control (SDC) settings are as follows:
v As Needed: This setting allows the platform firmware to determine whether a scan dump is performed.
This is the default setting for the dump policy.
v Always: This setting overrides the firmware recommendations and always performs a dump after a
system failure.
The Scan Dump Size (SDS) settings are as follows:
v
As Requested - Dump content is determined by the platform firmware.
v Minimum - Dump content collected provides the minimum debug information, enabling the platform to
reboot as quickly as possible.
Optimum - Dump content collected provides a moderate amount of debug information.
v
v Complete - Dump data provides the most complete error coverage at the expense of reboot speed.
You can access this service aid directly from the AIX command line by typing:
/usr/lpp/diagnostics/bin/uspchrp -d
Configure Surveillance Policy
Note: This service aid is supported only for systems running in full machine partition.
This service aid monitors the system for hang conditions; that is, hardware or software failures that cause
operating system inactivity. When enabled, and surveillance detects operating system inactivity, a call is
placed to report the failure.
Use this service aid to display and change the following settings for the Surveillance Policy:
Note: Because of system capability, some of the following settings might not be displayed by this service
aid:
v Surveillance (on/off)
v Surveillance Time Interval - This is the maximum time between heartbeats from the operating system.
v Surveillance Time Delay - This is the time to delay between when the operating system is in control and
when to begin operating system surveillance.
v Changes are to Take Effect Immediately - Set this to Yes if the changes made to the settings in this
menu are to take place immediately. Otherwise, the changes take effect beginning with the next system
boot.
You can access this service aid directly from the AIX command line, by typing:
/usr/lpp/diagnostics/bin/uspchrp -s
Chapter 7. Introducing Tasks and Service Aids
81
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