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 wish intel would make cheap multi-port PCIe SATA card based on their AHCI controllers. --Artem 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 :-( > > -pete. > _______________________________________________ > 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" > _______________________________________________ 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"
