On Thu, 2004-01-22 at 04:39, Peter Ruskin wrote: > On Thursday 22 Jan 2004 04:05, Mark Knecht wrote: > > QUESTION: how do I test these devices (cdrw and dvdr drives) to > > ensure DMA is still enabled? I cannot figure out yet what parameters > > to give hdparm -I /dev/WHAT? > > > > Wizard root # hdparm -I /dev/cdroms/cdrom0 > > /dev/cdroms/cdrom0 not supported by hdparm > > If you're using ide-scsi those devices are not supported by hdparm. > (Someone tell me if I'm wrong). >
Right. That's what I see. So my question is that we know the devices are attached to an IDE controller and we want to determine whether DMA is enabled for the IDE controller. How do we do it? 1) Some different program *like* hdparm that tells us? 2) Run some sort of benchmark that shows us? 3) Something else? Of course, you've sort of shown me that I might not need SCSI emulation anyway, but I'm not sure which way to go and why just yet, so I'd like to know how to make DMA is enabled in the channel. - Mark -- [EMAIL PROTECTED] mailing list
