EMC P/N 300-002-867 manual Analysis Scenarios, Single Application and Single TCP Check

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A n a l y s i s S c e n a r i o s

S y s t e m U n r e s p o n s i v e

System Unresponsive is a root-cause problem that indicates that a system’s protocol endpoints are not responding to ICMP or SNMP polls and that connections to applications hosted by the system are down. Application Connectivity Monitor diagnoses the System Unresponsive problem when it receives an UnresponsiveSymptom from IP Availability Manager.

Analysis Scenarios

This section uses three different topology scenarios to illustrate how Application Connectivity Monitor (ACM) diagnoses problems. In each scenario, Application Connectivity Monitor monitors the application by regularly establishing a TCP connection with the managed application on the specified TCP port. In addition, Application Connectivity Monitor receives network and systems availability information from IP Availability Manager.

Single Application and Single TCP Check

In the following scenario, a mail server, SMTPService, is hosted by host1.example.com, as shown in Figure 1.

EMC Smarts Application Connectivity Manager User’s Guide

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Contents USER’S Guide Application Connectivity MonitorLast Update 8/1/05 Contents Index ContentsIntended Audience PrefacePrerequisites Document OrganizationPreface Documentation ConventionsDocumentation Conventions Command Line Programs Application Connectivity Monitor Installation DirectoryAdditional Resources Application Connectivity Monitor ProductsTechnical Support EMC PowerlinkDo cume nt at io n C S m a r t s D o c u m e n t a t i o nTe c h n i c a l S u p p o r t Preface Topology Created by ACM Explanation of Fault AnalysisExplanation of Fault Analysis Faults Diagnosed by ACMW n L f u n c t i o nSingle Application and Single TCP Check Analysis ScenariosApplication Monitored by One Check I l S e r v e r D o w n I l S e r v e r D e g r a d e d A l y s i s S c e n a r i o s S t U n r e s p o n s i v eSingle Application and Two TCP Checks Notification Properties Of Degraded ProblemApplication Monitored by Two Checks B S e r v e r D o w n A l y s i s S c e n a r i o sNotifications Properties Of Malfunction Problem B S e r v e r D e g r a d e d Two Applications on a Single SystemSMTPService HTTPService Host2.example.com Notification Properties Of Down Problem B S e r v e r D e g r a d e d Host Unresponsive Affects Applications Impact Analysis with Business Impact ManagerExplanation of Fault Analysis DNSServer Down Propagates to Business Elements Explanation of Fault Analysis Analysis Results Displayed as Notifications Viewing Analysis Results and Application TopologyAbout Notifications Viewing Analysis Results and Application Topology Viewing the Properties of a NotificationOpening an Applications Map Viewing Application Topology in MapsP T e r m i n o l o g y Applications Hosted By System Topology Elements Displayed in an Application MapIndex Index