gpart and sector size
Alexey Tarasov
me at lexasoft.ru
Fri Apr 9 11:33:58 UTC 2010
On 09.04.2010, at 15:32, Andriy Gapon wrote:
> on 09/04/2010 14:27 Alexey Tarasov said the following:
>>> Or the disk doesn't actually report 4096 anywhere anyhow... Have you
>>> considered that? If yes, can you verify using any tools of any OS that the
>>> disk reports 4K in any way?
>>
>> In the previous discussion we found that the disk reports 512 sector size, but
>> there are additional ATA commands to determine if it has real sector size
>> larger than 4k. I will try to confirm this.
>
> Thank you. I think that this would be an interesting detail.
>
Here is the reference:
http://www.wdc.com/wdproducts/library/WhitePapers/ENG/2579-771430.pdf
> References
> The ATA8-ACS and SBC-3 standards have provisions for a disk drive to report Advanced Format sector sizes and other performance optimization information. These standards are used for SATA, SAS, USB, and IEEE 1394 based interface technologies.
--
Alexey Tarasov
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