On Mon, Jan 25, 2010 at 7:40 PM, Alexander Motin <m...@freebsd.org> wrote: > Artem Belevich wrote: >> aoc-sat2-mv8 was somewhat slower compared to ICH9 or LSI1068 >> controllers when I tried it with 6 and 8 disks. >> I think the problem is that MV8 only does 32K per transfer and that >> does seem to matter when you have 8 drives hooked up to it. I don't >> have hard numbers, but peak throughput of MV8 with 8-disk raidz2 was >> noticeably lower than that of LSI1068 in the same configuration. Both >> LSI1068 and MV2 were on the same PCI-X bus. It could be a driver >> limitation. The driver for Marvel SATA controllers in NetBSD seems a >> bit more advanced compared to what's in FreeBSD. > > I also wouldn't recommend to use Marvell 88SXx0xx controllers now. While > potentially they are interesting, lack of documentation and numerous > hardware bugs make existing FreeBSD driver very limited there. > >> I wish intel would make cheap multi-port PCIe SATA card based on their >> AHCI controllers. > > Indeed. Intel on-board AHCI SATA controllers are fastest from all I have > tested. Unluckily, they are not producing discrete versions. :( > > Now, if discrete solution is really needed, I would still recommend > SiI3124, but with proper PCI-X 64bit/133MHz bus or built-in PCIe x8 > bridge. They are fast and have good new siis driver. > >> On Mon, Jan 25, 2010 at 3:29 AM, Pete French >> <petefre...@ticketswitch.com> wrote: >>>> I like to use pci-x with aoc-sat2-mv8 cards or pci-e cards....that way you >>>> get a lot more bandwidth.. >>> I would goalong with that - I have precisely the same controller, with >>> a pair of eSATA drives, running ZFS mirrored. But I get a nice 100 >>> meg/second out of them if I try. My controller is, however on PCI-X, not >>> PCI. It's a shame PCI-X appears to have gone the way of the dinosaur :-( > > -- > Alexander Motin
Alexander, since you seem to be experienced in the area, what do you think of these 2 for use in a FreeBSD8 ZFS NAS: http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H http://www.supermicro.com/products/motherboard/ATOM/ICH9/X7SPA.cfm?typ=H&IPMI=Y - Sincerely, Dan Naumov _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
