$source = "\\evserver1\C$\Program Files (x86)\Enterprise Vault\Reports\Exchange Mailbox Archiving"
$target = "C:\EVArchive_Report"
$files = Get-ChildItem -Path $source -Filter *.csv -Recurse 
$counter


ForEach ($file in $files)
{

$rename = Join-Path -Path $target -ChildPath $file.name 
$fullpath = $file.fullname
    if(Test-Path -Path $rename)
    {
       $rename = Join-Path $target ($file.BaseName + "_old$counter" + $file.Extension)        
	echo f | xcopy /M /Y "$fullpath" "$rename"
       $counter+=2       
     }
echo f | xcopy /M /Y "$fullpath" "$rename"

}



#!!!!!!!! you can need to copy below lines and rename source as many as your amount  of ev server

$source = "\\evserver2\C$\Program Files (x86)\Enterprise Vault\Reports\Exchange Mailbox Archiving"
$files = Get-ChildItem -Path $source -Filter *.csv -Recurse 
 
ForEach ($file in $files)
{

$rename = Join-Path -Path $target -ChildPath $file.name 
$fullpath = $file.fullname
    if(Test-Path -Path $rename)
    {
       $rename = Join-Path $target ($file.BaseName + "_old$counter" + $file.Extension)        
	echo f | xcopy /M /Y "$fullpath" "$rename"
       $counter+=2       
     }
echo f | xcopy /M /Y "$fullpath" "$rename"

}

#!!!!!!!!!! end of copy