Critical State

Microsoft.SQLServerAppliance.PDW.StorageInternal.ControllerStateMonitor.Critical (UnitMonitor)

This monitor detects if Disk Controller Component is in Critical state.

Knowledge Base article:

Summary

The disk controller is reporting a critical status. This can cause a node outage and a cluster failover event.

Causes

This occurs when the disk controller is failing or is powered off.

For more details, view the component's controller_component_status property in the PDW Admin Console or query the sys.dm_pdw_component_health_status DMV.

Resolutions

Contact Microsoft Support and provide them with the alert name and details.

To diagnose this issue, Microsoft Support will require Windows administrator access to the PDW Management node in order to access the vendor’s integrated system user interface.

To resolve this issue, Microsoft Support will contact the vendor’s hardware support team. Depending on the problem, the vendor might require physical access to the appliance to replace the controller cables, the controller, or other hardware components.

Element properties:

Target

Microsoft.SQLServerAppliance.PDW.StorageInternal.Controller

Parent Monitor

System.Health.AvailabilityState

Category

AvailabilityHealth

Enabled

True

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.SQLServerAppliance.PDW.ComponentTwoStateType

Remotable

True

Accessibility

Public

Alert Message

Controller has CRITICAL status

Appliance Name: {0}
Node Name: {1}
Component: {2}
Component Details: https://{3}/Topology/NodeDetails/{4}?compId={5}

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.SQLServerAppliance.PDW.StorageInternal.ControllerStateMonitor.Critical" Accessibility="Public" Enabled="true" Target="PDWLibrary!Microsoft.SQLServerAppliance.PDW.StorageInternal.Controller" ParentMonitorID="Health!System.Health.AvailabilityState" TypeID="Microsoft.SQLServerAppliance.PDW.ComponentTwoStateType" Remotable="true" Priority="Normal" ConfirmDelivery="false">

  <Category>AvailabilityHealth</Category>

  <AlertSettings AlertMessage="Microsoft.SQLServerAppliance.PDW.StorageInternal.ControllerStateMonitor.Critical.AlertMessage">

    <AlertOnState>Error</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Error</AlertSeverity>

    <AlertParameters>

      <AlertParameter1>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/ApplianceID$</AlertParameter1>

      <AlertParameter2>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/NodeName$</AlertParameter2>

      <AlertParameter3>$Target/Property[Type="System!System.Entity"]/DisplayName$</AlertParameter3>

      <AlertParameter4>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/ApplianceNetworkAddress$</AlertParameter4>

      <AlertParameter5>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/NodeID$</AlertParameter5>

      <AlertParameter6>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/ID$</AlertParameter6>

    </AlertParameters>

  </AlertSettings>

  <OperationalStates>

    <OperationalState ID="Good" MonitorTypeStateID="Good" HealthState="Success"/>

    <OperationalState ID="Bad" MonitorTypeStateID="Bad" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <IntervalSeconds>900</IntervalSeconds>

    <SyncTime/>

    <TimeoutSeconds>600</TimeoutSeconds>

    <ConnectionString>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/ApplianceID$</ConnectionString>

    <NodeName>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/NodeName$</NodeName>

    <GroupName>$Target/Property[Type="PDWLibrary!Microsoft.SQLServerAppliance.PDW.Component"]/GroupName$</GroupName>

    <ComponentName>$Target/Property[Type="System!System.Entity"]/DisplayName$</ComponentName>

    <MonitoredState>Critical</MonitoredState>

  </Configuration>

</UnitMonitor>