FreeBSD & Software RAID
arab at tangerine-army.co.uk
Mon May 25 17:47:19 UTC 2009
From: Wojciech Puchar [mailto:wojtek at wojtek.tensor.gdynia.pl]
Sent: 25 May 2009 18:09
To: FreeBSD-Questions at freebsd.org
Cc: Howard Jones; Graeme Dargie; Valentin Bud
Subject: Re: FreeBSD & Software RAID
> I have looked at ZFS recently. Appears to be a memory hog, needs about
> GB especially if large file transfers may occur over gigabit ethernet
while it CAN be set up on 256MB machine with a little big flags in
loader.conf (should be autotuned anyway) - it generally takes as much
memory as it's available, and LOTS of CPU power.
with similar operations ZFS takes 10-20 TIMES more CPU than UFS and it's
NOT faster than properly configured UFS. doesn't make any sense
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Ok granted this is a server sat in my house and it is not a "mission"
critical server in a large business, personally I have can live with ZFS
taking a bit longer vs resilience. From just looking at my system at the
moment I have 1.8GB of free ram from a total of 4GB.
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