That is exactly what I was looking for. Your drive isn't optimized. unmaskirq should be enabled and it should use 32 bit support, not 16. Thanks for replying. On Thu, 2004-11-04 at 11:09 -0500, Neil B. Cohen wrote: > I've not used hdparm - what am I looking for? This is the output of just > running the command on my /dev/hdc device: > > [root@nbc-linux ~]# hdparm /dev/hdc > > /dev/hdc: > HDIO_GET_MULTCOUNT failed: Invalid argument > IO_support = 0 (default 16-bit) > unmaskirq = 0 (off) > using_dma = 1 (on) > keepsettings = 0 (off) > readonly = 0 (off) > readahead = 256 (on) > HDIO_GETGEO failed: Invalid argument > > If there is something specific I should look for, please let me know - > Feel free to email me directly (nbc@xxxxxxxxx) and save bandwidth on > this list... > > nbc > > On Thu, 2004-11-04 at 08:59 -0700, Kim Lux wrote: > > Could some of you check your CDROM optimizations with hdparm ? I am > > wondering if FC3 kernels are optimizing them properly. It might be a > > udev thing. See/reply to the "k3b: poor CDROM performance... " thread. > > > > Sorry for intruding on your thread. > > > > > > On Thu, 2004-11-04 at 10:24 -0500, Terry Polzin wrote: > > > The latest udev update seems to allow only root access to /media/usbdisk. > > > Although a mortal user can mount the device. Even an ls -l to the mounted dev > > > fails for the mortal user. > > > > > -- > > Kim Lux (Mr.) Diesel Research Inc > > > -- Kim Lux (Mr.) Diesel Research Inc