92 Netra T2000 Server Administration Guide • September 2006
Programming Alarm3
Alarm3 is available to Solaris Operating System users independent of the watchdog
mode. Alarm3 or system alarm on and off have been redefined (see
TABLE A-1).
Set the value of Alarm3 using the LOMIOCALCTL IOCTL. You can program Alarm3
the same way you set and clear Alarm1 and Alarm2.
The following table presents the behavior of Alarm3:
where:
■ COM means the common line
■ NC means normally closed
■ NO means normally open
To summarize the data in the table:
■ Alarm3 on = Relay(COM->NC), System LED off
■ Alarm3 off = Relay(COM->NO), System LED on
When programmed, you can check Alarm3 or the system alarm with the showalarm
command and the argument system.
For example:
TABLE A-1 Alarm3 Behavior
Alarm3 Relay System LED (Green)
Poweroff On COM -> NC Off
Poweron/LOM up On COM -> NC Off
Solaris running Off COM -> NO On
Solaris not running On COM -> NC Off
Host WDT expires On COM -> NC Off
User sets to on On COM -> NC Off
User sets to off Off COM -> NO On
sc> showalarm system
system alarm is on
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