Thank you guys, I compiled my new kernel (2.4.0 w/o ac patches) with UDMA feature enabled, so trying to enable it at boot time, but I get less speed than disabling it (of course after a certain work: hdparm -p -c1 -d0 -m16 -W1 /dev/hda) I'm interested in your lilo.conf,
append="hdc=ide-scsi idebus=66" ### notice the idebus=66 I'll try this option, and will read the docs, but what is "ide-scsi"????? (I can't remember this option in hdaparm man pages...). Is there any database of HD optimization parameter settings, or could we start it after precisely defining all the context (i.e. services running and everything else...?)? Any ideas?
Ciao e grazie, Stefano Álvaro A. Novo wrote:
On Monday 15 January 2001 09:48, Stefano Papini wrote:
Hello linux guys, after wandering on several docs I had to recognize that for both of my UDMA drives (IBM 4.3 and Quantum EL 7.6GB) the UDMA feature slow them down rather than speed them up.
After I compiled the kernel with the appropriate options, I no longer need to pass on the hdparm to my IDE 66 Maxtor hdrive. So, you may be experiencing something similar. At any rate, my options used to be:
hdparm -c3 -m16 -d1 -u1 and lilo.conf read: image = /boot/vmlinuz root = /dev/hda6 label = linux append="hdc=ide-scsi idebus=66" ### notice the idebus=66
(don't forget to run lilo to make it effective, but before test it by passing it at the lilo prompt, like, linux idebus=66)
Adjust it to your needs and read man hdarm (thorough man page). Hope it helps,
Alvaro Novo
SuSE 6.4 -=- Kernel 2.4.0-prerelease -=- KDE 2.1.0-Beta1-0 10:39am up 3 days, 21:27, 3 users, load average: 0.31, 0.19, 0.11