Pour des questions de performances, il est impératif que vos partitions soient aligner correctement (
http://support.microsoft.com/kb/929491/en).
Mais comment tester cet alignement?
Le script Powershell suivant vous donnera l'information:
$wmiDiskPartition = get-wmiobject -class "Win32_DiskPartition" -namespace "root\CIMV2"
$wmiLogicalDisk = get-wmiobject -class "Win32_LogicalDiskToPartition" -namespace "root\CIMV2"
$MaListe=@()     
foreach ($partition in $wmiDiskPartition){
 $MyResult=(($partition.StartingOffset) / 4096)
 $d=New-Object PSObject
 $d | Add-Member -Name Name -MemberType NoteProperty -Value ($partition.Name)
 $Trouve=$False
 foreach($part in $wmiLogicalDisk){
  if( ((($part.antecedent).split("=")[1]).replace("""","")) -eq (($partition.Name).Replace("Disque n° ","Disk #").Replace("partition n° ","Partition #"))){
   $Trouve=$True
   $d | Add-Member -Name DriveLetter -MemberType NoteProperty -Value (($part.Dependent.split("=")[1]).replace("""",""))
  }
 }
 if ($Trouve -eq $False){
  $d | Add-Member -Name DriveLetter -MemberType NoteProperty -Value "N/A"
 }
 $d | Add-Member -Name BlockSize -MemberType NoteProperty -Value ($partition.BlockSize)
 $d | Add-Member -Name NumberOfBlock -MemberType NoteProperty -Value ($partition.NumberOfBlocks)
 $d | Add-Member -Name StartingOffset -MemberType NoteProperty -Value ($partition.StartingOffset)
 $d | Add-Member -Name IsAligned -MemberType NoteProperty -Value ([int]$MyResult -eq $MyResult)
 $MaListe+=$d
}
$MaListe | ft