First, I want to thank Glenn Sizemore for his kick ass approach of scripting and mirroring the Igroups..(See other thread)

Here's the completed script to mirror igroups, initiators and LUN Mappings..- For the purpose of testing I threw an If statement in there to grab just one igroup.  You can remove the if statement if you want all igroups..

$sourcecontroller = Connect-NaController filera

$dstcontroller = Connect-NaController filerb

# Get Lun Info on Source Controller

$igroups = Get-NaIgroup -Controller $sourcecontroller

$LunInfo = Get-NaLun -Terse -Controller $sourcecontroller | where-object {$_.path -notlike "*sv*"} | Get-NaLunMap -Controller $sourcecontroller | Group-Object Name           

## Loop through existing $igroup info

foreach ($Igroup in $igroups) {

   if ($Igroup.name -eq "igroupname")

   {

    #Write-out command for testing igroup creation"

    Write-Host "`nCreating Igroup:" $Igroup.name "On controller" $dstcontroller

    Write-Host "--------------------------------------------------------"

    New-NaIgroup -Name $Igroup.Name -Type $Igroup.type -protocol $Igroup.protocol -controller $dstcontroller -confirm:$false

    ## Adding initators to Igroup

    Write-Host "`nAdding Initators: " $Initiators " to Igroup" $Igroup.name

    $Initiators = $iGroup.Initiators | Select-Object -ExpandProperty 'InitiatorName'

    $Initiators | Add-NaIgroupInitiator -igroup $igroup.name  -Controller $dstcontroller -confirm:$false

    Write-Host "`n"

    ### Add Lun Mappings for Igroup

    Write-Host "`nAdding Lun Mappings for: " $Igroup.name

      foreach ($lun in ($LunInfo| where {$_.Name -eq $igroup.Name} | select -ExpandProperty Group)) {

         Write-Host "`t`t`tLUN:" $lun.lunID ":" $lun.path

      Add-NaLunMap -Path $lun.path -InitiatorGroup $Igroup.name -ID $lun.lunid -Controller $dstcontroller -verbose

    }

}

}