Library and data source relation discovery (D-T)

Microsoft.SystemCenter.DataProtectionManager.2011.Discovery.DToTLibraryRelationDiscovery (Discovery)

Library and data source relation discovery (Disk-to-Tape).

Element properties:

Object Discovery Details:

Member Modules:

Source Code:

<Discovery ID="Microsoft.SystemCenter.DataProtectionManager.2011.Discovery.DToTLibraryRelationDiscovery" Enabled="true" Target="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.ProtectionGroup" ConfirmDelivery="true" Remotable="true" Priority="Normal">

  <Category>Discovery</Category>

  <DiscoveryTypes>

    <DiscoveryClass TypeID="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DataSource"/>

    <DiscoveryRelationship TypeID="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMLibraryContainsDatasource"/>

  </DiscoveryTypes>

  <DataSource ID="DtoTLibraryRelationDiscovery" TypeID="Windows!Microsoft.Windows.TimedPowerShell.DiscoveryProvider">

    <IntervalSeconds>43200</IntervalSeconds>

    <SyncTime>06:00</SyncTime>

    <ScriptName>DatasourceDtoTLibraryRelationDiscovery.ps1</ScriptName>

    <ScriptBody><Script>#Read input parameters

param($sourceType, $sourceId, $managedEntityId, [string] $dpmServerName, $pgId)



function DisplayError()

{

    param($description, $severity, $errorCode, $exceptionString, $resolutionString)

    

    $evt = new-object System.Diagnostics.EventLog("DPM Alerts");

    $evt.Source = "DPM-EM";

    $eventSeverity = [System.Diagnostics.EventLogEntryType]::Information;

    

    #severity = 0 is info and severity = 1 is warning

    if($severity -eq 1)

    {

       $eventSeverity = [System.Diagnostics.EventLogEntryType]::Warning;

    }

    

    $errString = new-object system.text.stringBuilder

    $errString.AppendLine($description)



    if($exceptionString -ne $null)

    {

       $errString.AppendLine()

       $errString.AppendLine("Problem: " + $exceptionString)

    }

   

    if($resolutionString -ne $null)

    {

       $errString.AppendLine()

       $errString.AppendLine("Resolution: " + $resolutionString)

    }

 

    $evt.WriteEntry($errString.ToString(), $eventSeverity, $errorCode);

}





#######################################################################################

## This script discovers the relation between Library and D-T DS

#######################################################################################



$desc = "D-T DS - Library relation discovery started event. PgId = " + $pgId



DisplayError $desc 0 114 $null $null



 # Load DPM snapin

$dpmBinPath = (Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Microsoft Data Protection Manager\Setup" "UIInstallPath").UIInstallPath

. "$dpmBinPath\GlobalFunctions.ps1"

LoadDPMSnapin



#Create and Instantinate SCOM discovery objects

$api = New-Object -ComObject 'MOM.ScriptAPI'

$discoveryData = $api.CreateDiscoveryData($sourceType, $sourceId, $managedEntityId)



try

{

  $guid_pgId = [GUID]$pgId



  #Connect to DPM server

  $err = $($dpmServer = Connect-DPMServer -DPMServerName $dpmServerName) 2&gt;&amp;1

  if (!$dpmServer)

  { 

    $desc = "D-T DS - Library relation discovery exited event as could not connect to dpm server = " + $dpmServerName

    if($err)

    {

      DisplayError $desc 1 115 $err.Exception.ToString() $err.Exception.Error.Resolution.ToString()

    }

    else

    {

      DisplayError $desc 1 115 $null $null

    }



    exit 1 

  }







  #Get D-T PG object for which we want to discover DSes

  $err = $($pg = Get-ProtectionGroup -DPMServerName $dpmServerName | Where{($_.PGProtectionType -ieq "DiskToTape" -or $_.PGProtectionType -ieq "DiskToTapeToTape") -and $_.ProtectionGroupId -eq $guid_pgId}) 2&gt;&amp;1



  if($err)

  {

     $desc = "Unable to retrieve PG list in D-T datasource Library relation discovery"

     DisplayError $desc 1 115 $err.Exception.ToString() $err.Exception.Error.Resolution.ToString()

  }



  if($pg)

  {     

    

    #Get library for PG

    $libraryInstance = $discoveryData.CreateClassInstance('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMLibrary"]$');

    $libraryInstance.AddProperty('$MPElement[Name="Windows!Microsoft.Windows.Computer"]/PrincipalName$', $dpmServerName);

    $libraryInstance.AddProperty('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMSeed"]/DPMServerName$', $dpmServerName)

    $libraryInstance.AddProperty('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMServer"]/DPMServerName$', $dpmServerName)

    $libraryInstance.AddProperty('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMLibrary"]/DPMObjectID$', $pg.ArchiveIntent.LibraryId.ToString());



    #Get all DSes for the PG

    $err = $($dsList = @(Get-Datasource -ProtectionGroup $pg)) 2&gt;&amp;1



    if($err)

    {

       $desc = "Unable to retrieve datasource list in D-T datasource Library relation discovery"

       DisplayError $desc 1 115 $err.Exception.ToString() $err.Exception.Error.Resolution.ToString()

    }



    if($dsList)

    {

       $dsList = $dsList | Sort-Object $_.Name

    }



    if($dsList)

    {

        foreach($ds in $dsList)

        {

            #Create a separate instance for the datasource class, This is required becasue SCOM will not discover containment relationships

            #if it has derived class properties in the instance.

            $dsRelInstance = $discoveryData.CreateClassInstance('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DataSource"]$');

            $dsRelInstance.AddProperty("$MPElement[Name='Windows!Microsoft.Windows.Computer']/PrincipalName$", $dpmServerName)   

            $dsRelInstance.AddProperty("$MPElement[Name='SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMSeed']/DPMServerName$", $dpmServerName)

            $dsRelInstance.AddProperty("$MPElement[Name='SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMServer']/DPMServerName$", $dpmServerName)

            $dsRelInstance.AddProperty("$MPElement[Name='SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.ProtectionGroup']/DPMObjectID$", $ds.ProtectionGroupId.ToString())

            $dsRelInstance.AddProperty("$MPElement[Name='SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DataSource']/DPMObjectID$", $ds.DatasourceId.ToString())

            

            #Create Library to DS relationship instance

            $libraryToDsRelationInstance = $discoveryData.CreateRelationshipInstance('$MPElement[Name="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.DPMLibraryContainsDatasource"]$');

            $libraryToDsRelationInstance.Source = $libraryInstance;

            $libraryToDsRelationInstance.Target = $dsRelInstance;

            $discoveryData.AddInstance($libraryToDsRelationInstance);



            Remove-Variable dsRelInstance -Confirm:$false

            Remove-Variable libraryToDsRelationInstance -Confirm:$false                

        }

     }

      

     Remove-Variable libraryInstance -Confirm:$false

  }



}

catch

{

  $desc = "Exception in D-T datasource Library relation discovery"

  DisplayError $desc 1 115 $_.ToString() $null

  throw $_

}



$desc = "D-T DS Library relation discovery completed event. PgId = " + $pgId

DisplayError $desc 0 115 $null $null





#return discovery data

$discoveryData



#Cleanup Variables

Remove-Variable sourceType -Confirm:$false

Remove-Variable sourceId -Confirm:$false

Remove-Variable managedEntityId -Confirm:$false

Remove-Variable discoveryData -Confirm:$false

Remove-Variable api -Confirm:$false

</Script></ScriptBody>

    <Parameters>

      <Parameter>

        <Name>SourceType</Name>

        <Value>0</Value>

      </Parameter>

      <Parameter>

        <Name>SourceId</Name>

        <Value>$MPElement$</Value>

      </Parameter>

      <Parameter>

        <Name>ManagedEntityId</Name>

        <Value>$Target/Id$</Value>

      </Parameter>

      <Parameter>

        <Name>DPMServerName</Name>

        <Value>$Target/Property[Type="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.ProtectionGroup"]/DPMServerName$</Value>

      </Parameter>

      <Parameter>

        <Name>PgId</Name>

        <Value>$Target/Property[Type="SCDPM!Microsoft.SystemCenter.DataProtectionManager.2011.Library.ProtectionGroup"]/DPMObjectID$</Value>

      </Parameter>

    </Parameters>

    <TimeoutSeconds>7200</TimeoutSeconds>

  </DataSource>

</Discovery>