The MetroCluster switchback operation returns a MetroCluster configuration to its normal operating state. This monitor checks that after a switchback operation, all aggregates or disks left behind have been restored to their owner. The monitor generates an alert if they are not fully restored. A check is done at the end of a switchback operation to ensure that all aggregates or volumes came back online but an administrator can override this check. The administrator can manually reassign disks to replace any missing disks that were not reassigned.
The MetroCluster switchback operation returns a MetroCluster configuration to its normal operating state. This monitor checks that after a switchback operation, all aggregates or disks left behind have been restored to their owner. The monitor generates an alert if they are not fully restored. A check is done at the end of a switchback operation to ensure that all aggregates or volumes came back online but an administrator can override this check. The administrator can manually reassign disks to replace any missing disks that were not reassigned.
Inspect the contents of the alert to determine its cause. The alert details list the name and UUID of the cluster for which aggregates or disks were not restored to their owner. Perform all steps listed in the MetroCluster documentation to heal the aggregates and perform a switchback operation to bring the MetroCluster configuration back to a normal state.
Target | DataONTAP.Cluster.MetroCluster.MetroCluster | ||
Parent Monitor | System.Health.AvailabilityState | ||
Category | AvailabilityHealth | ||
Enabled | True | ||
Alert Generate | True | ||
Alert Severity | MatchMonitorHealth | ||
Alert Priority | Normal | ||
Alert Auto Resolve | True | ||
Monitor Type | Microsoft.Windows.2SingleEventLog2StateMonitorType | ||
Remotable | True | ||
Accessibility | Public | ||
Alert Message |
| ||
RunAs | Default |
<UnitMonitor ID="DataONTAP.Cluster.MetroCluster.MetroCluster.SwitchBackEffectMonitor" Accessibility="Public" Enabled="true" Target="DataONTAP.Cluster.MetroCluster.MetroCluster" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.2SingleEventLog2StateMonitorType" ConfirmDelivery="false">
<Category>AvailabilityHealth</Category>
<AlertSettings AlertMessage="DataONTAP.Cluster.MetroCluster.MetroCluster.SwitchBackEffectMonitor.AlertMessage">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>MatchMonitorHealth</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/EventDescription$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="FirstEventRaised" MonitorTypeStateID="FirstEventRaised" HealthState="Success"/>
<OperationalState ID="SecondEventRaised" MonitorTypeStateID="SecondEventRaised" HealthState="Error"/>
</OperationalStates>
<Configuration>
<FirstComputerName/>
<FirstLogName>OnCommand</FirstLogName>
<FirstExpression>
<And>
<Expression>
<Or>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">20170</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">20173</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</Or>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">Clustered Data ONTAP MetroCluster MP</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<RegExExpression>
<ValueExpression>
<XPathQuery Type="String">Params/Param[1]</XPathQuery>
</ValueExpression>
<Operator>ContainsSubstring</Operator>
<Pattern>$Target/Property[Type="DataONTAP.Cluster.MetroCluster.MetroCluster"]/ClusterUUIDs$</Pattern>
</RegExExpression>
</Expression>
</And>
</FirstExpression>
<SecondComputerName/>
<SecondLogName>OnCommand</SecondLogName>
<SecondExpression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">20172</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">Clustered Data ONTAP MetroCluster MP</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<RegExExpression>
<ValueExpression>
<XPathQuery Type="String">Params/Param[1]</XPathQuery>
</ValueExpression>
<Operator>ContainsSubstring</Operator>
<Pattern>$Target/Property[Type="DataONTAP.Cluster.MetroCluster.MetroCluster"]/ClusterUUIDs$</Pattern>
</RegExExpression>
</Expression>
</And>
</SecondExpression>
</Configuration>
</UnitMonitor>