jw@pan.UUCP (Jamie Watson) (01/09/88)
Is it possible to *write* QIC-11 tapes on the RT/PC with AIX? So far, I've found the following: - The default tape device, /dev/rmt0, reads and writes QIC-24 tapes, and rewinds the tape on close. - The device /dev/rmt4 reads and writes QIC-24, and does not rewind. - The device /dev/rmt8 reads and writes QIC-24, but it performs a retension on the tape (winds it all the way forward and back) before starting. It also rewinds on close. - The device /dev/rmt12 works like rmt8, but does not rewind. However, I was extremely surprised to find that if I put a QIC-11 tape in the cartridge drive, the RT reads it just fine, using /dev/rmt0, too! I've seen a lot of Unix machines, with a lot of tape drives and drivers, but I've never seen on that will read both QIC-11 and QIC-24 tapes in the same drive, using the same device name, with no special flags! Now, the question is, how can I write a QIC-11 tape? Everything I write on any of the devices listed above comes out QIC-24. jw