IPHA - Monitoring server status

The IP-HA system reports changes of the server state to the Event Handler.

This article describes how to configure the Event Handler in order to report current server state to the System log.

Error reporting

At the change of state is either:

• Communication between the servers is lost or resumed
• A server changes state from Standby to Operational, or vice versa

the following strings will be reported to the System Log whenever there is a change of state.

• One of the servers is operational, and the other server is in standby mode:

Primary Server is operational. Both servers are running.

Secondary Server is operational. Both servers are running.

• One of the servers is operational, and the other server is Out of Service:

Primary Server is operational. WARNING: No communication with the other server.

Secondary Server is operational. WARNING: No communication with the other server.

Configuration

From AlphaPro, select Exchange & System > Events, and Insert a new event with the following properties:

Event to collect the status in the IPHA system

Copy/paste the action commands below into the event:

Action commands:

IF %op(%sev,>=,230)
IF %op(%sev,<=,232)
!Primary Server is operational
WUDD 1001 1
IF %op(%syse(232) ,&, %syse(230))
!Secondary Server is operational
WUDD 1001 2
ENDIF
IF %op(%op(%syse(230),==,0) ,&, %op(%syse(232),==,0))
!Secondary Server is operational
WUDD 1001 2
ENDIF
IF %syse(231)
!Both servers are running
WUDD 1002 1
ENDIF
IF %op(%syse(231),==,0)
!No communication with the other server
WUDD 1002 0
ENDIF
!Start a 10 sec timer
$ST L%1.dir W100 L9999
ENDIF
ENDIF

From AlphaPro, select Exchange & System > Events, and Insert a second event with the following properties (note that the ID of the event Owner must be "1"):

Event to report the status to the System Log

Copy/paste the action commands below into the event:

Action commands:

IF %op(%udd(1001),=,1)
tmp 1 "Primary Server is operational."
ENDIF
IF %op(%udd(1001),=,2)
tmp 1 "Secondary Server is operational."
ENDIF
IF %op(%udd(1002),=,1)
tmp 2 "Both servers are running."
ENDIF
IF %op(%udd(1002),=,0)
tmp 2 "WARNING: No communication with the other server."
ENDIF
LOG "%tmp(1) %tmp(2)"