From: Mark Lord <kernel@teksavvy.com>
To: Stan Hoeppner <stan@hardwarefreak.com>
Cc: IDE/ATA development list <linux-ide@vger.kernel.org>
Subject: Re: WD20EARS: finally reporting 4KByte sector size!
Date: Wed, 18 May 2011 19:19:57 -0400 [thread overview]
Message-ID: <4DD4541D.9090606@teksavvy.com> (raw)
In-Reply-To: <4DD44B9C.1050809@hardwarefreak.com>
On 11-05-18 06:43 PM, Stan Hoeppner wrote:
> On 5/15/2011 10:54 PM, Mark Lord wrote:
>> I picked up my third WD 2TB "Green" drive today,
>> and lo and behold.. the firmware (51.0AB51) actually
>> reports the real physical sector size (finally!).
>
>> Logical Sector size: 512 bytes
>> Physical Sector size: 4096 bytes
>
> What is the positive significance of this change? What does this
> materially change for the better?
Filesystems in the kernel can auto-align themselves for performance,
and I noticed that "fdisk" saw the 4KB sector size and adjusted itself
to put sector-1 at offset 64 instead of offset 63, saving me the trouble.
-ml
prev parent reply other threads:[~2011-05-18 23:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-16 3:54 WD20EARS: finally reporting 4KByte sector size! Mark Lord
2011-05-16 18:27 ` Bjørn Mork
2011-05-18 19:13 ` Mark Lord
2011-05-18 22:43 ` Stan Hoeppner
2011-05-18 23:19 ` Mark Lord [this message]
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