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List:       util-linux-ng
Subject:    Re: Howto for properly partitioning new drives with 4096 byte sectors
From:       Ramiro Morales <ramiro () rmorales ! net>
Date:       2010-04-26 18:43:05
Message-ID: 4BD5DEB9.3000903 () rmorales ! net
[Download RAW message or body]

On 25/04/2010 04:18 p.m., Ramiro Morales wrote:
> 
> Strangely enough, an user that posted to that same forum topic a
> couple of months ago seems to report a drive similar to yours (WDC
> WD15EARS-00Z5B1, firmware rev. 80.00A80) is correctly reporting a
> physical block size of 4KB:
> 
> 
> http://community.wdc.com/t5/Desktop/Problem-with-WD-Advanced-Format-drive-in-LINUX-WD15EARS/m-p/10739#M613
>  
> 
> hdparm -I /dev/sdb
> 
> /dev/sdb:
> 
> ATA device, with non-removable media
> Model Number:       WDC WD15EARS-00Z5B1
> Serial Number:      WD-WMAVUxxxxxxx
> Firmware Revision:  80.00A80
> [...]
> Configuration:
> [...]
> Logical  Sector size:                   512 bytes
> Physical Sector size:                  4096 bytes
> [...]
> 
> Unfortunately he doesn't report what version of hdparm he is using,
> his kernel version is 2.6.32-8.
> [...]
> Could this mean WD has changed things so some (newer?) models correctly
> report the real physical sector size?

More evidence about (some?) WD??EARS-00Z models correctly reporting
their physical block size in the 106th word of the reply to
the ata identify command. this time from the OpenBSD guys:

http://marc.info/?t=127071323300001&r=1&w=2

via

http://undeadly.org/cgi?action=article&sid=20100417195756&mode=expanded

-- 
Ramiro Morales
ramiro@rmorales.net
http://rmorales.net/
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