Svante Signell <[EMAIL PROTECTED]> wrote: > The drive can only be mounted with Master/Slave straps set > or in Cable Select. Are you proposing Cable Select here?? > I don't think so!
Now you're nitpicking. ;-> I mean _never_ configure the drive for slave. Nearly all new ATA and ATAPI devices come configured with a "slave" jumper option for legacy compatibility, but default to a single device on its own channel. In legacy terms, this is "master" although there is a difference between a single device and master device, but most devices can detect if there is a slave on the same channel. > Can you explain the difference with file transfer between > /dev/hda and /dev/hdb using DMA with writing a file on > dev/hdc to a burner at /dev/hdd using DMA then! No difference if they are on the _same_ channel. They cannot handle transfers simultaneously without resetting the bus as each takes control. If they are on different channels, say /dev/hda to /dev/hdc, then the bus is setup *1* time (typically at initial boot) and the drives copy to/from memory as transfers occur. That's why it's much, much faster with *1* device per channel. -- Bryan J. Smith Professional, Technical Annoyance [EMAIL PROTECTED] http://thebs413.blogspot.com ---------------------------------------------------- *** Speed doesn't kill, difference in speed does *** _______________________________________________ Dvdrtools-users mailing list Dvdrtools-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/dvdrtools-users
