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EMC Smarts Application Connectivity Manager User’s Guide 5
Analysis Scenarios
Host Unresponsive
An Unresponsive problem indicates that the system on which the application
is running cannot be reached through the network.
To diagnose System Unresponsive in this scenario, Application Connectivity
Monitor receives a host1.example.com UnresponsiveSymptom from IP
Availability Manager. In addition, ACM may observe SlowSymptom or
TimedOutSymptoms events in response to TCP checks.
Application Connectivity Monitor must receive an UnresponsiveSymptom
from IP Availability Manager to diagnose an Unresponsive problem.
Mail Server Degraded
A Degraded problem indicates that the application is not performing as
expected. This means that the application is responding to TCP checks, but
not within the expected time period.
To diagnose Degraded in this scenario, Application Connectivity Monitor
observes a SlowSymptom event for a TCP check to SMTPService. A
SlowSymptom event occurs when an application responds to the TCP check
but the response time exceeds the threshold.
Figure 2 shows the Notification Properties dialog for the SMTPService
Degraded problem. Application Connectivity Monitor diagnosed a
Degraded problem with 100% certainty because it observed the
SlowSymptom event in response to a TCP check.