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Date: Tue, 16 Nov 2010 21:16:28 +0100 (CET)
From: Wojciech Puchar <wojtek@tensor.gdynia.pl>
To: Ivan Voras <ivoras@freebsd.org>
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Cc: freebsd-questions@freebsd.org
Subject: Re: ZFS and 4k sector drives
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i was sure it have variable sizes but multiplies of 4k, anyway i dont care 
;)

using 32 or 64K blocks (means 4 or 8K fragments) with UFS and full disks, 
or partitions aligned to 4K solves all problems