Now that I have both my PATA and SATA hard drives functional, I decided to test the speeds that I am getting from both of them and have found it surprising that my PATA is actually getting better speeds than my SATA:
optimusprime:/home/john# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 80 MB in 3.00 seconds = 26.63 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device optimusprime:/home/john# hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 140 MB in 3.01 seconds = 46.55 MB/sec Both hard drives are Western Digital 7200RPM. The SATA is a 200GB drive and the PATA is a 100GB drive. My board is an Asus K8V SE Deluxe, I am using the VIA IDE controller and the VIA SATA controller (which I read on the list is supposed to be faster than the promise SATA controller that is also on the board) -John On 6/14/05, Jeffrey Hahn <[EMAIL PROTECTED]> wrote: > On 6/14/05, Goswin von Brederlow <[EMAIL PROTECTED]> wrote: > > Jeffrey Hahn <[EMAIL PROTECTED]> writes: > > > > > On 6/14/05, John Baab <[EMAIL PROTECTED]> wrote: > > >> > It has loaded the via82cxxx *after* the ide_generic module. Hence the > > >> > ide_generic driver (that doesn't allow DMA to be turned on) is being > > >> > used. > > >> > > > >> > In /etc/modules put "via82cxxx" above ide_generic (if it appears), and > > >> > reboot. > > >> > If via82cxxx is the right module, DMA should be enabled. > > >> > > >> Worked like a charm, DMA is now turned on and system seems a lot more > > >> stable. My CPU usage still jumps, but there is a clear difference. > > >> > > >> -Thanks for all the help, John > > >> > > >> > > > > > > I've been having the same problem with the same board but modifying > > > the /etc/modules was one of the first things I tried, and it still > > > refuses to load the modules in the order given. dmesg still shows > > > "Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2" loading > > > immediately after the sata (sata_via), probing all the ide devices, > > > then doing some ACPI stuff before my via82cxxx driver comes along and > > > fails to load because none of the ide devices are still available. > > > > Blacklist it. > > > > MfG > > Goswin > > > > I was able to fix it by rebuilding the initrd as was hinted to by > someone else off-list. > >