Date: Mon, 9 Jun 2008 23:31:35 +0200 (CEST) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: =?ISO-8859-1?Q?Anders_H=E4ggstr=F6m?= <hagge.lists@intercorner.net> Cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD + ZFS on a production server? Message-ID: <20080609232736.X39884@wojtek.tensor.gdynia.pl> In-Reply-To: <1a5a68400806091158n17397a14k66d85e30ac3e1a46@mail.gmail.com> References: <1a5a68400806080604ped08ce8p120fc21107e7de81@mail.gmail.com> <20080608215648.Q9779@wojtek.tensor.gdynia.pl> <20080608230131.00003da7@westmark> <20080609001010.G59013@wojtek.tensor.gdynia.pl> <g2hp91$jtp$1@ger.gmane.org> <20080608233315.GA33530@dan.emsphone.com> <20080609094333.H27092@wojtek.tensor.gdynia.pl> <1a5a68400806091158n17397a14k66d85e30ac3e1a46@mail.gmail.com>
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> I haven't heard/read about any huge CPU consumptions from ZFS, not yet as i already said. most people today have problems as they have too fast CPU and too much RAM ;) they don't see high CPU load on quad core machine with 16GB RAM having not big load :) > For the memory I've read that ZFS use up to approximately 700MB of ram UFS use what's unused. works on 16MB and 16GB. > project anyway. The live-cd hangs on "device detect". > One of the pros for OpenSolaris I've noticed is the support for a > virtual host man jail while maybe not with resource control like on solaris, but i use it with success. it's really excellent. but use nullfs with it to be able to share binaries. > I have now found a filesystem for linux that do checksum on the fly, > btrfs. but why you need it?! all PATA/SATA drives do checksumming on every read. in hardware, no CPU load.
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