On Thu, Jun 28, 2007 at 02:51:58PM +0400, Michael Tokarev wrote: >[..] > Test machine was using MPTSAS driver for the following card: > SCSI storage controller: LSI Logic / Symbios Logic SAS1064E PCI-Express > Fusion-MPT SAS (rev 02) > > Pretty similar results were obtained on an AHCI controller: > SATA controller: Intel Corporation 82801GR/GH (ICH7 Family) Serial ATA > Storage Controller AHCI (rev 01) > on another machines.
Are you sure that NCQ was enabled between the controller and drive? Did you verify this? I know about some versions that disable NCQ support internally in their firmware (something to do with bugs in error handling). -- Dan Aloni XIV LTD, http://www.xivstorage.com da-x (at) monatomic.org, dan (at) xiv.co.il - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
