>>>>> "S�ren" == S�ren Schmidt <[EMAIL PROTECTED]> writes:
S�ren> David Gilbert wrote: >>>>>>> "Jo�o" == Jo�o Carlos Mendes Lu�s <[EMAIL PROTECTED]> writes: >> >> >> Jo�o> IIF they really have command queueing, I do believe. So, a >> Jo�o> bridged SATA drive will not have command queuing, right? >> >> Well... from what I've read, the WD bridged drives do have queueing >> because they had an ATA-100 implementation of it. >> >> Jo�o> Does FreeBSD already take advantage of this? How could I >> check Jo�o> if my SATA drivers have command queueing or not? >> >> I'd like to know as well. S�ren> Currently the ATA driver does not support neither TCQ nor NCQ. S�ren> For this to work at all both disk and controller needs to S�ren> support the mode in question. I've just gotten my hands on one S�ren> of the new Promise controllers that supports NCQ, but I still S�ren> need disks to get it going. I do have a few Raptor's that S�ren> support the TCQ mode but initial testing shows little benefit S�ren> from it so it moved to the backburner... Do you need direct access to a drive or is access to a machine with a drive/controller in it sufficient. Are promise controllers the only ones to support NCQ so far? Promise doesn't always have the best reputation. We may be able to provide a test machine with remote access to a drive/controller combination. -- ============================================================================ |David Gilbert, Independent Contractor. | Two things can only be | |Mail: [EMAIL PROTECTED] | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================ _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
