I'm running FC6 in a Dell Inspiron 1501. It works well, generally, but the disk performance is sub-par (compared to WinXP, for example). The disk is only 5400RPM but the drive access is jumpy and occupies the CPU moreso than other systems. I note that the drive is listed as /dev/sda telling me that it's seen as SCSI... so I can't use hdparm.
Disk: Western Digital WD800BEVS
Question: is it possible to reconfigure the kernel to run the drive as an ATA? or is there some other method of improving performance for this type of configuration?