From owner-freebsd-fs@FreeBSD.ORG  Mon Mar 29 14:28:49 2010
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From: Pascal Stumpf <Pascal.Stumpf@cubes.de>
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Date: Mon, 29 Mar 2010 16:16:27 +0200
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Subject: ZFS raidz and 4k sector disks
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I have exactly that setup (3 drives, GPT partitions aligned to 4k=20
boundaries, geli with 4k sector size, on top of that RAID-Z), and=20
the write performance is the same as with a single ZFS partition on=20
a regular 512-sector disk. So yes, it does work. (I don=E2=80=99t have a=20
benchmark on how geli affects RAID-Z performance though, since=20
all my ZFS partitions are encrypted.