> 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.

I have a western digital drive with 4k physical sectors that causes
OpenIndiana to use ashift=12 (and refuse to use it as a replacement in
an ashift=9 vdev), though it appears to report 512 logical sectors, so
somehow OpenIndiana noticed the real sector size.  It is model
WD30EURS (a green "AV-GP" drive).  Is it close enough to what you want
for solaris to know that it is really 4k, even if it is a 512e drive?

Some smartctl info:
Device Model:     WDC WD30EURS-63R8UY0
Firmware Version: 80.00A80
Sector Sizes:     512 bytes logical, 4096 bytes physical

hdparm -I (on linux) also figures out that the drive has 4k physical sectors.

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