This monitor verifies the availability of Active Directory using an LDAP (Lightweight Directory Access Protocol) request. It periodically binds to the Domain Controller to verify the availabilty using an LDAP query
This monitor provides the following on configuration:
IntervalSeconds: How frequently the monitor is run (in sec)
NumSamples: How many times the monitor has to be over the threshold to generate an alertThresholdWarnSec: The warning threshold in sec.
ThresholdErrorSec: The error threshold in sec.
There can be several causes to a poor performance of an LDAP query. Use the inline tasks provided below to diagnose the problem.
Tasks Check current LDAP response time
Check top processes currently using the processor
Views AD DC General Response Performance View
Target | Microsoft.Windows.Server.2008.AD.DomainControllerRole | ||
Parent Monitor | System.Health.PerformanceState | ||
Category | PerformanceHealth | ||
Enabled | True | ||
Alert Generate | True | ||
Alert Severity | MatchMonitorHealth | ||
Alert Priority | Normal | ||
Alert Auto Resolve | True | ||
Monitor Type | Microsoft.Windows.Server.2008.AD.DomainController.LastBindMonitor.Monitortype | ||
Remotable | False | ||
Accessibility | Public | ||
Alert Message |
| ||
RunAs | Default |
<UnitMonitor ID="Microsoft.Windows.Server.2008.AD.DomainController.LastBindMonitor.Monitor" Accessibility="Public" Enabled="onEssentialMonitoring" Target="AD2008Core!Microsoft.Windows.Server.2008.AD.DomainControllerRole" ParentMonitorID="SystemHealth!System.Health.PerformanceState" Remotable="false" Priority="Normal" TypeID="Microsoft.Windows.Server.2008.AD.DomainController.LastBindMonitor.Monitortype" ConfirmDelivery="false">
<Category>PerformanceHealth</Category>
<AlertSettings AlertMessage="Microsoft.Windows.Server.2008.AD.DomainController.LastBindMonitor.Monitor.AlertMessage">
<AlertOnState>Warning</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>MatchMonitorHealth</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/Value$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="OK" MonitorTypeStateID="OK" HealthState="Success"/>
<OperationalState ID="Warn" MonitorTypeStateID="Warn" HealthState="Warning"/>
<OperationalState ID="Error" MonitorTypeStateID="Error" HealthState="Error"/>
</OperationalStates>
<Configuration>
<IntervalSeconds>300</IntervalSeconds>
<LogSuccessEvent>false</LogSuccessEvent>
<NumSamples>5</NumSamples>
<ThresholdWarnSec>5</ThresholdWarnSec>
<ThresholdErrorSec>15</ThresholdErrorSec>
<ManagementGroupName>$Target/ManagementGroup/Id$</ManagementGroupName>
<TimeoutSeconds>120</TimeoutSeconds>
</Configuration>
</UnitMonitor>