Date: Sat, 12 Oct 2013 08:53:55 -0700 From: aurfalien <aurfalien@gmail.com> To: FreeBSD Questions Mailing List <freebsd-questions@freebsd.org> Subject: FreeBSD, Centos and ZFS Message-ID: <CBA24BB3-4A57-428C-B342-4BEB678B8D43@gmail.com>
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Hi, I would like to first say that by no means is this a "hey, why is my Mac = faster then my PC" kind of email. I'm really hoping its an LSI driver issue. My hardware; 39 SATA drives via SAS expanders 2 SSD for ZIL 2 SSD for L2Arc 128GB ECC Ram Intel 2400SC Mobo 2 Xeon E5 Hexacore procs 2 LSI 9207 HBAs 1 LSI 9206 HBA I've 13 vdev RaidZ setup. Not a super system, but not a shabby one either. Used local (non network) IOzone and dd tests for some simple prelim = testing just to gauge were I'm at with this bad boy. My ZFS tunables are the same BTW as I did some tweaks. My CentOS 6.4 box is a solid 20-30% faster then my FreeBSD 9.2 box. = I've the graphs if any one is interested. But I'm hoping that some one has ran into this and that yes, there are = some tweaks one can do to the LSI driver? I guess? Perhaps a sysctl = value? I didn't want to vomit too much info in my first email about this so = yes, its meant to be some what general with some decent info to get the = dialogue started. Many thanks in advance for any insight. Linux is not an option as it does not return pre attributes on write = replies which is important in our mostly NFS env. - aurf
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