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The Spot Daemon: spotd

The Spot Daemon (spotd) pings the watchdog module in the i/o box every second. If the watchdog module fails to receive a ping after five seconds, the clamshell is automatically closed via a hardware switch. Hence, in the unfortunate event of an unexpected shutdown of the daq system (eg, due to software failure or power failure), the clamshell will close itself.

Rotse Pager 2003-05-20