4k sector drives

[Emmanuel Florac]

Le Tue, 20 Jul 2010 20:58:27 +0200 vous écriviez:

> I recently bought 2 new 4k sector drives (WD Caviar Green 2TB, 
> WD20EARS), but Linux kernel 2.6.34.1 still says:
> 
> # blockdev --getss /dev/sdd
> 512
> 
> Shouldn't that be 4096? Where is the problem?

They come in emulation mode (like many SATA-II drives came in SATA-I
mode). You must set them to 4K blocks manually, for WD IIRC with a DOS
software. And you need a controller that supports 4K blocks, too
(probably anything older than a year won't).

-- 
------------------------------------------------------------------------
Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |	<eflorac at intellique.com>
                    |   +33 1 78 94 84 02
------------------------------------------------------------------------