Joel Rees wrote: > The sales guy at Pasokon Kobo over in Mikage a couple of years back warned me > against trying to use both master and slave at the same time, but they admitted > to not having much experience with Linux. In the MSWindows universe they were > familiar with, there were enough reports of silent corruption they figured it > was best to stay with one channel, one drive, particularly when building RAID > on ATA controllers. There *used* to be problems with some controllers, most notoriously the CMD640. For more details, see Documentation/cdrom/ide-cd and Documentation/ide.txt (from the kernel documentation). The CMD640 is now obsolete. > Correct me if I'm wrong, but master and slave on a single channel > can't handle commands concurrently? That's my understanding. And that's why *I* would advise against having two devices on the same channel *if* they are both going to be heavily used at the same time. If they are used for different OSes, that sounds fine. James. -- E-mail: james@ | DON'T be put off by "horror stories" spread by others. aprilcottage.co.uk | People who talk about death and serious injury are very | rarely the ones who have actually suffered such things. | -- Adrian Plass