MSSQL on Windows: Database Log Backup Status

Microsoft.SQLServer.Windows.MonitorType.AvailabilityDatabaseHealth.DBLogBackupStatus (UnitMonitorType)

This monitor type checks the state of a database log backup on a MSSQL Database Engine installation on Windows.

Element properties:

RunAsMicrosoft.SQLServer.Core.RunAs.Monitoring
AccessibilityInternal
Support Monitor RecalculateFalse

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Windows.DataSource.AvailabilityDatabaseHealth.DBLogBackupStatus Default
DatabaseFilter ConditionDetection System.ExpressionFilter Default
FilterBad ConditionDetection System.ExpressionFilter Default
FilterGood ConditionDetection System.ExpressionFilter Default

Overrideable Parameters:

IDParameterTypeSelectorDisplay NameDescription
Thresholdint$Config/Threshold$Backup Period (minutes)The target backup frequency in minutes. Should be set according to your Recovery Point Objective (RPO).
NumSamplesint$Config/NumSamples$Number of samplesThe number of times a measured value should breach the threshold before the state is changed.
IntervalSecondsint$Config/IntervalSeconds$Interval (seconds)The recurring interval of time in seconds in which to run the workflow.
SyncTimestring$Config/SyncTime$Synchronization TimeThe synchronization time specified by using a 24-hour format. May be omitted.
SqlExecTimeoutSecondsint$Config/SqlExecTimeoutSeconds$Timeout for query execution (seconds)The workflow will fail and register an event, if the query execution takes longer than the specified period.
SqlTimeoutSecondsint$Config/SqlTimeoutSeconds$Timeout for database connection (seconds)The workflow will fail and register an event, if it cannot access the database during the specified period.
TimeoutSecondsint$Config/TimeoutSeconds$Timeout (seconds)Specifies the time the workflow is allowed to run before being closed and marked as failed.

Source Code:

<UnitMonitorType ID="Microsoft.SQLServer.Windows.MonitorType.AvailabilityDatabaseHealth.DBLogBackupStatus" Accessibility="Internal" RunAs="SqlCoreLib!Microsoft.SQLServer.Core.RunAs.Monitoring">
<MonitorTypeStates>
<MonitorTypeState ID="Good"/>
<MonitorTypeState ID="Bad"/>
</MonitorTypeStates>
<Configuration>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MachineName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="NetbiosComputerName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="DatabaseName" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ConnectionString" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceVersion" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceEdition" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MonitoringType" type="xsd:string"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="Threshold" type="xsd:int"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="NumSamples" type="xsd:integer"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlExecTimeoutSeconds" type="xsd:int"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlTimeoutSeconds" type="xsd:int"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="TimeoutSeconds" type="xsd:int"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IntervalSeconds" type="xsd:int"/>
<xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SyncTime" type="xsd:string"/>
</Configuration>
<OverrideableParameters>
<OverrideableParameter ID="Threshold" ParameterType="int" Selector="$Config/Threshold$"/>
<OverrideableParameter ID="NumSamples" ParameterType="int" Selector="$Config/NumSamples$"/>
<OverrideableParameter ID="IntervalSeconds" ParameterType="int" Selector="$Config/IntervalSeconds$"/>
<OverrideableParameter ID="SyncTime" ParameterType="string" Selector="$Config/SyncTime$"/>
<OverrideableParameter ID="SqlExecTimeoutSeconds" ParameterType="int" Selector="$Config/SqlExecTimeoutSeconds$"/>
<OverrideableParameter ID="SqlTimeoutSeconds" ParameterType="int" Selector="$Config/SqlTimeoutSeconds$"/>
<OverrideableParameter ID="TimeoutSeconds" ParameterType="int" Selector="$Config/TimeoutSeconds$"/>
</OverrideableParameters>
<MonitorImplementation>
<MemberModules>
<DataSource TypeID="Microsoft.SQLServer.Windows.DataSource.AvailabilityDatabaseHealth.DBLogBackupStatus" ID="DS">
<MachineName>$Config/MachineName$</MachineName>
<NetbiosComputerName>$Config/NetbiosComputerName$</NetbiosComputerName>
<InstanceName>$Config/InstanceName$</InstanceName>
<ConnectionString>$Config/ConnectionString$</ConnectionString>
<InstanceVersion>$Config/InstanceVersion$</InstanceVersion>
<InstanceEdition>$Config/InstanceEdition$</InstanceEdition>
<MonitoringType>$Config/MonitoringType$</MonitoringType>
<SqlExecTimeoutSeconds>$Config/SqlExecTimeoutSeconds$</SqlExecTimeoutSeconds>
<SqlTimeoutSeconds>$Config/SqlTimeoutSeconds$</SqlTimeoutSeconds>
<TimeoutSeconds>$Config/TimeoutSeconds$</TimeoutSeconds>
<IntervalSeconds>$Config/IntervalSeconds$</IntervalSeconds>
<SyncTime>$Config/SyncTime$</SyncTime>
</DataSource>
<ConditionDetection ID="DatabaseFilter" TypeID="System!System.ExpressionFilter">
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">Property[@Name='DatabaseName']</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">$Config/DatabaseName$</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</ConditionDetection>
<ConditionDetection ID="FilterGood" TypeID="System!System.ExpressionFilter">
<Expression>
<Or>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="Integer">Property[@Name='MinutesSinceBackup']</XPathQuery>
</ValueExpression>
<Operator>Less</Operator>
<ValueExpression>
<Value Type="Integer">0</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="Integer">Property[@Name='MinutesSinceBackup']</XPathQuery>
</ValueExpression>
<Operator>Less</Operator>
<ValueExpression>
<Value Type="Integer">$Config/Threshold$</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</Or>
</Expression>
</ConditionDetection>
<ConditionDetection ID="FilterBad" TypeID="System!System.ExpressionFilter">
<Expression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="Integer">Property[@Name='MinutesSinceBackup']</XPathQuery>
</ValueExpression>
<Operator>GreaterEqual</Operator>
<ValueExpression>
<Value Type="Integer">0</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="Integer">Property[@Name='MinutesSinceBackup']</XPathQuery>
</ValueExpression>
<Operator>GreaterEqual</Operator>
<ValueExpression>
<Value Type="Integer">$Config/Threshold$</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</And>
</Expression>
<SuppressionSettings>
<MatchCount>$Config/NumSamples$</MatchCount>
<SampleCount>$Config/NumSamples$</SampleCount>
</SuppressionSettings>
</ConditionDetection>
</MemberModules>
<RegularDetections>
<RegularDetection MonitorTypeStateID="Good">
<Node ID="FilterGood">
<Node ID="DatabaseFilter">
<Node ID="DS"/>
</Node>
</Node>
</RegularDetection>
<RegularDetection MonitorTypeStateID="Bad">
<Node ID="FilterBad">
<Node ID="DatabaseFilter">
<Node ID="DS"/>
</Node>
</Node>
</RegularDetection>
</RegularDetections>
</MonitorImplementation>
</UnitMonitorType>