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Re: 4k sector drives

To: Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx>
Subject: Re: 4k sector drives
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Wed, 21 Jul 2010 12:33:49 +0200
Cc: xfs@xxxxxxxxxxx
In-reply-to: <201007211114.16023@xxxxxx>
Organization: Intellique
References: <201007211053.45191.eye.of.the.8eholder@xxxxxxxxx> <201007211114.16023@xxxxxx>
Le Wed, 21 Jul 2010 11:14:15 +0200
Michael Monnerie <michael.monnerie@xxxxxxxxxxxxxxxxxxx> écrivait:

> I have these:
> Model=WDC WD20EARS-00MVWB0, FwRev=50.0AB50, SerialNo=WD-WMAZ20035646
> Model=WDC WD20EARS-00MVWB0, FwRev=50.0AB50, SerialNo=WD-WMAZ20028252
> Any chance to get Linux know they are 4k sector drives manually?

From what I've read here and there, apparently they'll always present
512 bytes blocks, bu the system is somehow aware that the underlying
block is 4K large, apparently. It isn't very clear... 

BTW, I suppose that with such a drive, it's highly commendable to use
4K FS blocks (or larger) instead of the common 1K ones...

Emmanuel Florac     |   Direction technique
                    |   Intellique
                    |   <eflorac@xxxxxxxxxxxxxx>
                    |   +33 1 78 94 84 02

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