I have a number of 2TB WD20EARX (Green) drives which I have previously used in a Windows Home Server (2003). Before I installed 2 of them in that box I used WDAlign to undo the 4k Advanced format sectors and create 512B sectors. That greatly improved performance in that machine. (WHS 2003 is similar to Windows XP in that respect). One of the disks was ‘disk0’ and had the system and a data partition (2 partitions total) so I couldn’t use the 7-8 link on that disk to force a 512B compatibility.
On another drive I simply installed a jumper between pins 7-8 before introducing it to the WHS 2003 where it was used for a single large data partition added to the Drive Extender pool.
Now I am building a Windows 8 machine using Storage Spaces. Before I added the now empty disks to the SS Pool I used PowerShell’s Get-PhysicalDisk|fc to inspect the disk status and notice that even though I have removed the 7-8 links all the disks show 512B sector sizes, which will affect performance in Windows 8. I wish to restore the original 4k sector size.
So, here’s the question…
How can I undo the WD Align tool’s work of creating 512B sectors and return the disks to the original as-bought 4k sector size of Advanced Format? WD Align appears to only offer the 4k -> 512B direction of realignment and its GUI/wizard does not offer the reverse 512B -> 4k direction. Is there a hidden switch, key sequence, or other incantation to use? Maybe an even more difficult to find WD Unalign application?