Miscellaneous; System Watchdog (Wd) - Congatec conga-IGX User Manual

12

Miscellaneous

12.1

System Watchdog (WD)

conga-IGX provides full Operating System Boot- and Operating System-Runtime HW Watchdog supervision.
Power On
How to handle the two watchdog levels
BIOS Boot Watchdog
Set Watchdog Timeout in BIOS Setup
0 = WD disabled
1 – 255 = WD enabled (timeout = 1 – 255 minutes)
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BIOS POST OS Boot
BIOS Boot Watchdog
BOOT-WD-timeout
(according to BIOS Setup)
Note:
Both watchdogs are physically identical, but they are handled from different application levels
OS running
OS Watchdog
OS-WD-timeout (max. 255 minutes)
(according to specific WD software agent)
OS started. If the watchdog has been enabled by BIOS (timeout
set to xy minutes in BIOS Setup) it must be switched off or
retriggered (continuously) by a specific OS application (=WD
software agent), otherwise the system will be reset after xy
minutes (= BOOT-WD-timeout) respectively after nn minutes
(repetitive OS-WD-timeout).
If the watchdog is enabled in BIOS Setup (timeout set to xy ≥ 1 minutes) and the
system hangs during OS boot, the system will be reset after xy minutes.
If the watchdog is enabled in BIOS Setup (timeout set to xy ≥ 1 minutes) and the system hangs
during OS boot, the system will be reset after xy minutes.
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