The DuplexWrite error piece xxx of the DuplexWrite group yyy is the most recent piece. Nevertheless it was set to error, because write commands were sent to the other piece, before the more recent piece appeared. If ... [DDM_5212]

Fujitsu.Servers.PRIMERGY.Windows.Rules.DDM_5212 (Rule)

The data on the more recent piece should be overwritten:
Disable the error piece and start recover.
The data on the more recent piece should be conserved:
If it is a system disk, the system has to be rebooted, while the first piece with older data must be disconnected. (Unmap LUN or change BIOS settings etc.) If it is a data disk, you can either reboot with disconnected older piece (see above) or follow these steps: Stop applications accessing this disk - remove drive letters - disable the online piece - set the error piece to online - start recover - reassign drive letters - start applications.
(Additional a message box is displayed on all active terminals.)

Knowledge Base article:

Summary

[DDM_5212] The DuplexWrite error piece %1 of the DuplexWrite group %2 is the most recent piece. Nevertheless it was set to error, because write commands were sent to the other piece, before the more recent piece appeared. If both pieces were switched now, the file system could be corrupted. Therefore the more recent piece stays in status Error. Because a recover would overwrite newer data, the recover is rejected in this case.

Causes

This event is caused by the following problem:

(see Summary)

Resolutions

The data on the more recent piece should be overwritten:

Disable the error piece and start recover.

The data on the more recent piece should be conserved:

If it is a system disk, the system has to be rebooted, while the first piece with older data must be disconnected. (Unmap LUN or change BIOS settings etc.) If it is a data disk, you can either reboot with disconnected older piece (see above) or follow these steps: Stop applications accessing this disk - remove drive letters - disable the online piece - set the error piece to online - start recover - reassign drive letters - start applications.

To view the details of the problem:

Launch ServerView System Monitor
Launch ServerView Remote Management iRMC

Element properties:

Target

Fujitsu.Servers.PRIMERGY.Windows.Server

Category

EventCollection

Enabled

False

Event_ID

5212

Event Source

ddm

Alert Generate

True

Alert Severity

Warning

Alert Priority

Normal

Remotable

True

Alert Message

[DDM_5212] The DuplexWrite error piece xxx of the DuplexWrite group yyy is the most recent piece. Nevertheless it was set to error, because write commands were sent to the other piece, before the more recent piece appeared. If ...

Event Log

System

Member Modules:

ID	Module Type	TypeId	RunAs
DS	DataSource	Microsoft.Windows.EventProvider	Default
Alert	WriteAction	System.Health.GenerateAlert	Default

Source Code:

<Rule ID="Fujitsu.Servers.PRIMERGY.Windows.Rules.DDM_5212" Enabled="false" Target="FTSWIN!Fujitsu.Servers.PRIMERGY.Windows.Server" ConfirmDelivery="true" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="DS" TypeID="Windows!Microsoft.Windows.EventProvider">

      <ComputerName>$Target/Property[Type="FTSLIB!Fujitsu.ServerView.Server"]/NetworkName$</ComputerName>

      <LogName>System</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

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

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="UnsignedInteger">5212</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

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

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="String">ddm</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="Alert" TypeID="SystemHealth!System.Health.GenerateAlert">

      <Priority>1</Priority>

      <Severity>1</Severity>

      <AlertName/>

      <AlertDescription/>

      <AlertOwner/>

      <AlertMessageId>$MPElement[Name="Fujitsu.Servers.PRIMERGY.Windows.Rules.DDM_5212.AlertMessage"]$</AlertMessageId>

      <AlertParameters/>

      <Suppression>

        <SuppressionValue>$Data/EventDisplayNumber$</SuppressionValue>

        <SuppressionValue>$Data/PublisherName$</SuppressionValue>

        <SuppressionValue>$Data/EventLevel$</SuppressionValue>

        <SuppressionValue>$Data/EventNumber$</SuppressionValue>

      </Suppression>

      <Custom1/>

      <Custom2/>

      <Custom3/>

      <Custom4/>

      <Custom5/>

      <Custom6/>

      <Custom7/>

      <Custom8/>

      <Custom9/>

      <Custom10/>

    </WriteAction>

  </WriteActions>

</Rule>