DHCP Server 2012 Failover Server Relationship Lost Communication with Partner Server Monitor

Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher.UnitMonitor.LostCommunicationWithfailoverPartnerServer (UnitMonitor)

Knowledge Base article:

Summary

A failover relationship can be seen as a partnership link between two servers.

When the server detects that lost communication with its partner server for a failover relationship.

This situation will change the state of the monitor to error.

Causes

Check if partner server is running or if communication with local server is possible.

Resolutions

Check if you can communicate with Failover Partner Server using a Ping command.

Element properties:

Target

Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher

Parent Monitor

System.Health.AvailabilityState

Category

StateCollection

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

DHCP Server 2012 Failover Server Relationship has reported that lost communication with its partner server

{0}

RunAs

Default

Source Code:

<UnitMonitor ID="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher.UnitMonitor.LostCommunicationWithfailoverPartnerServer" Accessibility="Public" Enabled="true" Target="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.2SingleEventLog2StateMonitorType" ConfirmDelivery="true">

  <Category>StateCollection</Category>

  <AlertSettings AlertMessage="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher.UnitMonitor.LostCommunicationWithfailoverPartnerServer.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="Error"/>

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

  </OperationalStates>

  <Configuration>

    <FirstComputerName>$Target/Property[Type="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher"]/PartnerServer$</FirstComputerName>

    <FirstLogName>DhcpAdminEvents</FirstLogName>

    <FirstExpression>

      <And>

        <Expression>

          <Or>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">DHCP-Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">Microsoft-Windows-DHCP-Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </Or>

        </Expression>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">20252</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </And>

    </FirstExpression>

    <SecondComputerName>$Target/Property[Type="Microsoft.Windows.DHCPServer.2012.FailoverServerWatcher"]/PartnerServer$</SecondComputerName>

    <SecondLogName>DhcpAdminEvents</SecondLogName>

    <SecondExpression>

      <And>

        <Expression>

          <Or>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">DHCP-Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="String">PublisherName</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="String">Microsoft-Windows-DHCP-Server</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </Or>

        </Expression>

        <Expression>

          <Or>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">20259</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

                  <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">20260</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

          </Or>

        </Expression>

      </And>

    </SecondExpression>

  </Configuration>

</UnitMonitor>