Re: gpart and sector size

From: Alexander Motin <mav_at_FreeBSD.org>
Date: Fri, 09 Apr 2010 14:56:59 +0300
Andriy Gapon wrote:
> on 09/04/2010 14:00 Alexey Tarasov said the following:
>> I've booted from dvd to fixit mode and got the following:
>> /dev/ad4
>>    512             # sectorsize
>>    1500301910016   # mediasize in bytes (1.4T)
>>    2930277168      # mediasize in sectors
>>    0               # stripesize
>>    0               # stripeoffset
>>    2907021         # Cylinders according to firmware.
>>    16              # Heads according to firmware.
>>    63              # Sectors according to firmware.
>>    WD-WMAVU1512579 # Disk ident.
>>
>> Seems that mav_at_ commit doesn't work? o_O

Commit was to "ada" driver, not to "ad".

> 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?

My testing WDC Green disk with Advanced Format doesn't reports it's
physical sector size. I've studied it's IDENTIFY output even manually.
`camcontrol devinfo ada0 -v` dumps full identify data.

-- 
Alexander Motin
Received on Fri Apr 09 2010 - 09:57:11 UTC

This archive was generated by hypermail 2.4.0 : Wed May 19 2021 - 11:40:02 UTC