Date: Wed, 6 Aug 2008 14:15:02 -0500 (CDT) From: Wes Morgan <morganw@chemikals.org> To: Peter Schuller <peter.schuller@infidyne.com> Cc: freebsd-fs@freebsd.org Subject: Re: ZFS Advice Message-ID: <alpine.BSF.1.10.0808061400590.25442@ibyngvyr.purzvxnyf.bet> In-Reply-To: <200808061928.37001.peter.schuller@infidyne.com> References: <alpine.BSF.1.10.0808051842550.93088@ibyngvyr.purzvxnyf.bet> <18585.3903.895425.122613@almost.alerce.com> <200808061928.37001.peter.schuller@infidyne.com>
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On Wed, 6 Aug 2008, Peter Schuller wrote: >> The AoC-SAT2-MV8 is based on the "Marvell Hercules-2 Rev. C0 SATA host >> controller", which seems to be AKA 88SX6081, which is listed as >> supported by the ata driver in 7.0-RELEASE. Has anyone had any ZFS >> experience with it? > > Yes; it has been working quite fine for me with 7 up to a release-candidate. > In 7.0-RELEASE you must disable the hptrr driver because it eats the device. > See: > > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/120615 > http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/120842 > > When I say "working fine", this is with 8 SATA drives (6 of them in a raidz2, > two of them for other stuff) and not having any issues like corruption, > timeouts or whatever else people have had with shaky controllers. > > However, I cannot speak to performance because it's a PCI-X card that I've > plugged into a PCI slow, so throughput is limited by the PCI bus (and the > machine is otherwise not the fastest to begin with). > > Note that this is on 32 bit; haven't been able to try it on 64 bit because I > the PCI-X card wouldn't work on the motherboard (again PCI, so it's > hit-and-miss) where I would otherwise have tried it. > > I'd love to find a buyable PCI-E version that also worked in FreeBSD... I'll > see if the link in your post contains any such hints. Hmmm... That PCI-X card is interesting. Supermicro also lists this: http://www.supermicro.com/products/accessories/addon/AOC-USAS-L8i.cfm http://www.lsi.com/storage_home/products_home/standard_product_ics/sas_ics/lsisas1068e/index.html Not much onboard ram, but it's PCI-E and even SAS. CDW lists it for $155. That would be cheaper than buying a new board with a PCI-X slot or two, and would even handle SAS drives. Claims to be based on the "LSISAS 1068E SAS controller". Any idea if that is supported? I don't see it listed in the mfi man page. LSI has a Linux driver for download. That card looks like it would be just what I need.
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