Alexander Motin <m...@freebsd.org> writes: > I haven't dug really deep into current ataraid(4), but AFAIK it is all > done in software. At least there is no any offloading support on the > controller drivers level. None of ata(4) drivers do anything except > executing one ATA command at a time.
Correct. That doesn't mean they *shouldn't* use offloading. Like I said, I started working on checksum offloading for Promise SATA controllers, but ZFS came along and I replaced the controllers because of data corruption issues (which turned out to be either a driver bug or a PCI timing bug which sos@ worked around in the driver, I forget which) > Any URLs? Google "Promise FastTrak SATA RAID" I have two or three of those, including one with on-board SDRAM (but no battery backup) DES -- Dag-Erling Smørgrav - d...@des.no _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
