Hi,

Formatting a SCSI disk is actually quite easy. Here is something from
my notes (thanks Craig):

Byte    Bit    7      6      5      4      3      2      1      0

0       |-------Op Code (0x04) ------------------------------------|
1       |-Logical Unit Number---|FmtData|CmpLst|Defect List Format |
2       |        Vendor Specific                                   |
3       |        Interleave (MSB)                                  |
4       |        Interleave (LSB)                                  |
5       |        Control Byte                                      |


This is the format of the raw SCSI command which can be issued from 
the EPROM monitor. Some of the information is not required -- I used
{0x04, 0, 0, 0, 1, 0} to format two drives successfully.

Good Luck,
Neil