I've got a SCSI drive that works fine as an internal drive, but is unhappy externally. I put it in an old SCSI enclosure that used to contain a DAT drive. The enclosure is connected to the Mac with a 6-foot DB-25 to Centronics 50 cable. This drive is the only external SCSI device. The Mac doesn't see the drive at all, but if I run Lido 7, it reports a phase read error at SCSI ID 1 where the drive is. I've tried it with the built-in drive termination on and off, and with and without an external SCSI terminator.

Possible explanations I can think of:

- The SCSI enclosure wiring is somehow bad

- 6 foot is just too long for a SCSI cable

I'm not sure what to try next, since neither of those sound too likely. Maybe try again with an 18 inch cable, if I can find one?