3.2.2
Setting Up the Watchdog Timer
An
AlphaServer
TS15 system running
Tru64
UNIX
contains a watchdog timer that,
when enabled, monitors the running system and takes action should the system become
hung. The watchdog timer is functional only after enabling it within both the RMC
command-line interface as well as within
Tru64
UNIX
.
At the RMC prompt, the commands
enable/disable wdt
are used to enable or disable the
RMC's portion of the watchdog timer functionality. The commands
enable/disable reboot
are used to determine what action the RMC takes in the event that a watchdog timer timeout
occurs. These commands need to be executed only once for the state to persist. For
additional information on these commands, see Section 6.11.
From the operating system, the watchdog timer functionality is turned off by default, but is
controlled by the 'titan' system attribute called
hbrick_watchdog_timer_enable
. This
attribute can be set for the current session with the
sysconfig
command, or longer term via
the
/etc/sysconfigtab
file.
To turn it on dynamically via
sysconfig
, enter the following command:
sysconfig -r titan hbrick_watchdog_timer_enable=1
To turn it off dynamically, enter this command:
sysconfig -r titan hbrick_watchdog_timer_enable=0
To turn it on at the earliest opportunity after boot, add these lines to the
/etc/sysconfigtab
file. This is the preferred method to enable the watchdog timer in the
operating system for normal operation.
titan:
hbrick_watchdog_timer_enable=1
When
Tru64 UNIX
shuts down, the operating system portion of the watchdog timer is turned
off, so there is no watchdog timer timeout while in console mode.
Booting and Installing an Operating System
3-15
Содержание AlphaServer TS15
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Страница 34: ...Figure 1 14 VGA Monitor Connected to Optional Video Card B 1 2 A MR0647 1 18 hp AlphaServer TS15 Owner s Guide ...
Страница 91: ...Figure 4 3 Removing the Top Cover A 2 1 4 5 3 MR0642 Installing and Configuring Options 4 5 ...
Страница 188: ...Figure 6 4 Setup for RMC with VGA Monitor A 1 2 B MR0626 ENET VGA 6 10 hp AlphaServer TS15 Owner s Guide ...
Страница 213: ...Figure 6 5 RMC Jumpers Default Positions Using the Remote Management Console 6 35 ...
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