WD EARS 2 TB drive

[kasper]

I have some of these drives that were used in a Raid array and had the WD align programme run on them to correct the 4K MBR situation on XP. I have now added them into my unRaid array (without data of course). Should I have done this straight off, or is there something that I should have done to them first to "unalign" them

[marcusone]

Preclear is nice to do before, but not required.  Make sure that the jumper is not on it, and set UnRaid to 4k-aligned on the settings page.

[kasper]

Hi Marcusone

 

Thanks for that, its basically what I did

[dgaschk]

What does the WD align program do exactly? I thought that it is an alternative to using a jumper to improve performance with XP (or pre-4.7 unRAID). If it does do the same thing as a jumper then setting the drive to 4K unaligned would improve performance.

[Joe L.]

What does the WD align program do exactly? I thought that it is an alternative to using a jumper to improve performance with XP (or pre-4.7 unRAID). If it does do the same thing as a jumper then setting the drive to 4K unaligned would improve performance.

Nobody knows.  (or at least, they are not telling)

[kasper]

What does the WD align program do exactly? I thought that it is an alternative to using a jumper to improve performance with XP (or pre-4.7 unRAID). If it does do the same thing as a jumper then setting the drive to 4K unaligned would improve performance.

Nobody knows.  (or at least, they are not telling)

 

Whatever it does it took 4 days to do it on 6 drives that I had.

[dgaschk]

I'm guessing here, but I think you want 4K unaligned if the drives have processed by WD align. Treat it like a disk with a jumper. (Don't add a jumper.)