On 24 July 2012 16:56, Toby Corkindale
<toby.corkindale@strategicdata.com.au> wrote:
On 24/07/12 16:51, Colin Fee wrote:
> A colleague has asked if there is any utility, application, or command
> to show a disks physical block size. He's particularly interested in
> interrogating a drive to see if it's an Advanced Format drive i.e. with
> native 4096 byte sectors or 512e sectors etc.
hdparm -I /dev/sda
Hmmmmm. On my laptop here that command produces the following:
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user addressable sectors: 976773168
Logical Sector size: 512 bytes
Physical Sector size: 4096 bytes
Logical Sector-0 offset: 0 bytes
device size with M = 1024*1024: 476940 MBytes
device size with M = 1000*1000: 500107 MBytes (500 GB)
cache/buffer size = 16384 KBytes
Nominal Media Rotation Rate: 7200
Yet a look at the spec sheet from seagate shows, for all drives in this family,:
Bytes per sector = 512