wdt(8) - Linux man page

Name

wdt - display and set WatchDog Timer parameters

Synopsis

wdt [-adelrtx -N node -P/-R pswd -U user -ETVF]

Description

wdt is a program that uses IPMI commands to display and set WatchDog Timer parameters.

This utility can use either the /dev/ipmi0 driver from OpenIPMI, the /dev/imb driver from Intel, the /dev/ipmikcs driver from valinux, direct user-space IOs, or the IPMI LAN interface if -N.

Note that the device-independent way to manipulate watchdog timers in Linux is to use the /dev/watchdog interface. This utility is an example of how to access the IPMI watchdog parameters directly.

Options

Command line options are described below.
-a N
Set watchdog event Action to N. Values: 0 = No action, 1 = Hard Reset(default), 2 = Power down, 3 = Power cycle.
-d
Disables the watchdog timer.
-e
Enables the watchdog timer. The timer is not actually started, however, until the timer is reset. The pre-timeout action is not enabled.
-l
Set the watchdog dontLog bit to not log watchdog events in the SEL.
-r
Resets the watchdog timer. This should be done every N seconds if the timer is running to prevent the watchdog action (usually a system reset) from occurring.
-tN
Set the watchdog Timeout to N seconds. The default is 120 seconds (2 minutes).
-x
Causes extra debug messages to be displayed.
-N nodename
Nodename or IP address of the remote target system. If a nodename is specified, IPMI LAN interface is used. Otherwise the local system management interface is used.
-P/-R rmt_pswd
Remote password for the nodename given. The default is a null password.
-U rmt_user
Remote username for the nodename given. The default is a null username.
-E
Use the remote password from Environment variable IPMI_PASSWORD.
-F drv_t
Force the driver type to one of the followng: imb, va, open, gnu, landesk, lan2, lan, kcs, smb. The default is to detect any available driver type and use it.
-T
Use a specified IPMI LAN Authentication Type: 0=None, 1=MD2, 2=MD5, 4=Straight Password, 5=OEM.
-V
Use a specified IPMI LAN privilege level. 1=Callback level, 2=User level, 3=Operator level, 4=Administrator level (default), 5=OEM level.
-Y
Yes, do prompt the user for the IPMI LAN remote password. Alternatives for the password are -E or -P.

See Also

alarms(8) bmchealth(8) fruconfig(8) getevent(8) hwreset(8) icmd(8) pefconfig(8) sensor(8) showsel(8) tmconfig(8)

Warnings

See http://ipmiutil.sourceforge.net/ for the latest version of wdt and any bug fix list.

Copyright

Copyright © 2001-2003 Intel Corp.

See the file COPYING in the distribution for more details regarding redistribution.

This utility is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY.

Author

Andy Cress <arcress@users.sourceforge.net>

Referenced By

isolconsole(8)