ipmi_watchdog_action(5) File Formats Manual ipmi_watchdog_action(5)
ipmi_watchdog_action - sets action taken if IPMI watchdog timer expires
The value used depends on what the system administrator wants to happen if the system can not make forward progress.
The tunable sets the watchdog timer expiration action on systems with the IPMI (Intelligent Platform Management Interface) watchdog timer.
To tell if a system has this feature use If is listed, the IPMI watchdog timer is supported.
HP's Itanium Product Family systems and recent PA RISC systems use IPMI as part of the system manageability infrastructure. IPMI uses a
"watchdog timer" to detect conditions where the operating system has hung or is not responding. The action configured using the tunable
will take place automatically when this situation occurs.
For instance, if set to the system (or partition, on cellular systems) will hard reset if the OS is hung or not responding.
Who Is Expected to Change This Tunable?
System administrators that want the system to take an action if system forward progress stops.
Restrictions on Changing
None. This tunable is dynamic.
What Other Tunable Values Should Be Changed at the Same Time?
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
was developed by HP.
kctune(1M), sam(1M), gettune(2), settune(2).
Tunable Kernel Parameters ipmi_watchdog_action(5)