On Mon, Jun 18, 2012 at 5:26 PM, Carson Gaspar <car...@taltos.org> wrote:
> What makes you think the Barracuda 7200.14 drives report 4k sectors? I gave
> up looking for 4kn drives, as everything I could find was 512e. I would
> _love_ to be wrong, as I have 8 4TB Hitachis on backorder that I would
> gladly replace with 4kn drives, even if I had to drop to 3TB density.
> From page 11 of
> http://www.seagate.com/staticfiles/support/docs/manual/desktop/Barracuda%207200.14/100686584c.pdf
> Formatted capacity (512 bytes/sector)**
> Bytes per sector (4K physical emulated at 512-byte sectors)
> From the smartmontools list,
> http://www.mail-archive.com/smartmontools-database@lists.sourceforge.net/msg00537.html
> Sector Sizes:     512 bytes logical, 4096 bytes physical

Hmm, interesting.

Like Timothy noted.  My $work is also running into the same problem
the Seagate 7200.14 where an ashift=9 pool would not accept the 4k

If you check the archives for a "Advanced Format HDD's - are we there
yet?" [1] thread from the end of May we discuss this same topic.

[1] http://mail.opensolaris.org/pipermail/zfs-discuss/2012-May/051559.html
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