Re: [gentoo-user] 1-Terabyte drives - 4K sector sizes? -> bar performance so far

[Iain Buchanan <iaindb@netspace.net.au>]

On Tue, 2010-02-09 at 14:54 -0800, Mark Knecht wrote:
> On Tue, Feb 9, 2010 at 1:13 PM, Frank Steinmetzger <Warp_7@gmx.de> wrote:


> > When I use parted on the drives, it says (both the old external and my 2
> > months old internal):
> > Sector size (logical/physical): 512B/512B
> > So no speedup for me then. :-/

so does mine :)

> Frank,
>    As best I can tell so far none of the Linux tools will tell you
> that the sectors are 4K. I had to go to the WD web site and find the
> actual drive specs to discover that was true.

however if you use dmesg:
$ dmesg | grep ata
ata1: SATA max UDMA/133 irq_stat 0x00400040, connection status changed
irq 17
ata2: DUMMY
ata3: SATA max UDMA/133 abar m2048@0xf6ffb800 port 0xf6ffba00 irq 17
ioatdma: Intel(R) QuickData Technology Driver 4.00
ata3: SATA link down (SStatus 0 SControl 300)
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: ATA-7: ST9160823ASG, 3.ADD, max UDMA/133
ata1.00: 312581808 sectors, multi 8: LBA48 NCQ (depth 31/32)
...

you can look up your drive model number (in my case ST9160823ASG) and
find out the details.  (That's a Seagate Momentus 160Gb with actual 512
byte sectors).

saves having to open up your laptop / pc if you didn't order the drive
separately or you've forgotten.
-- 
Iain Buchanan <iaindb at netspace dot net dot au>

polygon:
	Dead parrot.