ZFS raidz and 4k sector disks

[Šimun Mikecin]

http://svn.freebsd.org/viewvc/base?view=revision&revision=198897

- Add support for sector size > 512 bytes and physical sector of several
logical sectors, introduced by ATA-7 specification.

May be I have misunderstood this log message?


This commit is for HEAD (are you using HEAD?) and I suppose it doesn't work if you are using ata (disk name is adX) driver instead of ahci (disk name is adaX).