Re: scsi error.

> You apparently have a Data Parity Error on your SCSI bus.  Probably your
> external SCSI drive has a cable or terminator problem.  You can confirm this
> by disconnecting the external SCSI cable to see if the other drives come up
> ok.  
> You may be missing some termination, either via an external terminator or by
> turning on the drive's TERMPWR jumper on the external drive (depending on
> the type of disk cabinet you have).  Or, the external SCSI cable may be
> faulty (usually bent pins).

Also, it could be that you are using a cable designed for a Mac - those cables often don't have all of the GND lines individually connected, and can cause seemingly random problems.

John