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Date: Mon, 1 Dec 2008 18:49:46 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Kirk Strauser <kirk@strauser.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: Disenchanted with ZFS; alternatives?
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> I have ZFS on my 7.1-PRERELEASE system, and while it does some spiffy things,
> in general I'm a bit underwhelmed.

UFS is excellent. your problem is that you like to have "lots of 
filesystems". why don't just make one or one per disk?

i have one per disk/mirror configuration everywhere except one place where 
i made separate filesystem for /var/spool/squid for some reasons.

tell me what's your needs and how many/what disks you have.

UFS is best-performer on real load, runs on almost no RAM, but uses more 
if available for caching.