When an Operations Sentinel server connects to or disconnects from the agent, the interface software sends messages to the Operations Sentinel server. Items enclosed in brackets [ ] are optional. TEST is included only if ALLOW_AUTOMATED_KEYINS is NO.

The following messages are sent when a server connects.

          hhmmss PRIMARY_[TEST_]SPO SERVER CONNECT name PORT port-id

          hhmmss SECONDARY_[TEST_]SPO SERVER CONNECT name PORT port-id

where name is the Operations Sentinel server name, the Operations Sentinel server IP address (if the name cannot be determined), or the word NONE.

The following message is sent when the primary Operations Sentinel server disconnects.

          hhmmss PRIMARY_[TEST_]SPO SERVER DISCONNECT name PORT port-id

When the primary Operations Sentinel server disconnects, the interface software begins treating the secondary server as the primary server. When the secondary server becomes the primary, the interface software sends the following messages after making the switch:

hhmmss SECONDARY_[TEST_]SPO SERVER PROMOTED TO PRIMARY
hhmmss PRIMARY_[TEST_]SPO SERVER IS NOW: name PORT port-id

When the secondary Operations Sentinel server disconnects rather than being promoted to primary, the interface software sends the following message.

          hhmmss SECONDARY_[TEST_]SPO SERVER DISCONNECT name PORT port-id

where:

hhmmss

is the MCP host time the message was sent.

name

server name or IP address.

port-id

TCP port number it is using to communicate with the MCP host.

The SP-AMS database, MCPMon, includes patterns to raise alerts when disconnecting from the Operations Sentinel server so the operator can be warned. When the primary production server disconnects, the alert severity is MAJOR. When the primary test server disconnects, the alert severity is WARNING. However, as described below, this severity can be reduced when a secondary server is promoted to primary server.

Similarly, MCPMon includes patterns to raise an alert with a severity of MINOR if the secondary production Operations Sentinel server disconnects and to raise an alert with a severity of WARNING if the secondary test server disconnects.

MCPMon includes patterns corresponding to server connections that clear the alerts raised for server disconnects.

If the secondary Operations Sentinel server is promoted to primary, the situation is less severe than if there is no Operations Sentinel server connected. MCPMon includes a pattern to match the promotion message and to reduce the severity of the disconnection alert from MAJOR or MINOR to INFORMATIONAL.