On Thursday 13 October 2005 13:13, Kirk Bocek wrote: > I've used hdparm -Tt on all sorts of non-IDE devices: flash-memory drives, > Raid devices, RAM drives. It's never been a problem. > > Kirk > > Steve Adeff wrote: > > On Thursday 13 October 2005 12:50, Kirk Bocek wrote: > >>Here's the output on my SATA drive: > >> > >># hdparm -Tt /dev/sda > >> > >>/dev/sda: > >> Timing cached reads: 3832 MB in 2.00 seconds = 1915.88 MB/sec > >>HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate > >> ioctl for device Timing buffered disk reads: 184 MB in 3.02 seconds = > >> 60.84 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: > >> Inappropriate ioctl for device > >> > >>So it fails on some sort of IO command but still runs the benchmark. > >> > >>Kirk > > > > those IO errors are normal as hdparm is designed for IDE while the SATA > > drivers treat SATA as a SCSI device. from your numbers though, DMA is > > definitely on. > > > > Steve
Well, yes, but the older SATA drivers didn't have a complete command set. I used to get the same error on my SATA drives but with the 2.6.13 kernel i don't. Nothing to worry about though, and as I said, "DMA" is definitely on (not that SATA does the whole DMA thing like PATA does). Steve _______________________________________________ mythtv-users mailing list [email protected] http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
