On Monday 26 August 2002 12:45 pm, Nate Eldredge wrote: > As for hdparm, this is complicated with ide-scsi. For ide-scsi to work > you have to make the ide-cd module ignore the scsi-ified drive. In which > case /dev/hdc or whatever it is won't work until you have loaded the > ide-scsi module, perhaps by touching /dev/scd0. So at least in my setup, > further complications are needed. > Be warned, ide-scsi resets the using_dma flag when it's loaded. This is an even bigger problem with devfs, because after ide-cd is unloaded there is no /dev/hd? node to feed hdparm. The only workaround I've found so far is to create a temporary device node, /tmp/hdd, load ide-scsi, and `hdparm -d 1 /tmp/hdd'.
Oh, you can get some pretty decent improvements with `hdparm -c 1' as well. It toggles 12/32-bit IDE transfer modes, and isn't reset by ide-scsi. Found all this out trying to get my new PlexWriter 40/12/40a 40x CD-RW drive to burn discs full speed. -- "das ist liebe, das ist hass / mit eifersucht vermahlen"