SQL Database Connection Failed

Microsoft.SharePoint.2013.SPDatabase.Connection (UnitMonitor)

A critical state of this Monitor indicates that a SQL Database connection attempt failed for a specified connection string.

Note:
This Monitor is disabled by default, enable this Monitor if you want this Management Pack to monitor the SQL Database Connection for SharePoint 2010.

Knowledge Base article:

Summary

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http://go.microsoft.com/fwlink/?LinkId=245008

Causes

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View Alerts

Element properties:

TargetMicrosoft.SharePoint.SPDatabase
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledFalse
Alert GenerateTrue
Alert SeverityError
Alert PriorityHigh
Alert Auto ResolveTrue
Monitor TypeMicrosoft.SharePoint.2013.OleDbCheckConnectionMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
SharePoint: Database Connection Failed
A critical incident has occurred where the connection to database {0} failed.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.SharePoint.2013.SPDatabase.Connection" Accessibility="Public" Enabled="false" Target="WSS!Microsoft.SharePoint.SPDatabase" ParentMonitorID="Health!System.Health.AvailabilityState" Priority="Normal" TypeID="Microsoft.SharePoint.2013.OleDbCheckConnectionMonitorType">
<Category>AvailabilityHealth</Category>
<AlertSettings AlertMessage="Microsoft.SharePoint.2013.SPDatabase.Connection_AlertMessageResourceID">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>High</AlertPriority>
<AlertSeverity>Error</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Target/Property[Type="WSS!Microsoft.SharePoint.SPDatabase"]/LegacyConnectionString$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="NoConnectionFailure" MonitorTypeStateID="NoConnectionFailure" HealthState="Success"/>
<OperationalState ID="ConnectionFailure" MonitorTypeStateID="ConnectionFailure" HealthState="Error"/>
</OperationalStates>
<Configuration>
<ConnectionString>Provider=SQLOLEDB;$Target/Property[Type="WSS!Microsoft.SharePoint.SPDatabase"]/LegacyConnectionString$</ConnectionString>
<IntervalSeconds>1800</IntervalSeconds>
</Configuration>
</UnitMonitor>