The little 50pin connectors are DSSI.
SCSI adaptors typically used the 'centronics' connectors.
Nothing wrong with DSSI. I believe each drive had state
memory and its own mc68000 processr. You can log-in
to _the drive_ and inquire usage statistics and other history
from it. Not necessary, but just another fun thing to
do with
VAXes.
Does anyone have any other suggested hardware
documentation
site's they think would be worthwhile to point me at?
There is a set of files called the "dec94mds" that has a file
v4000oga.pdf in it. That file is the VAX 4000 Operations guide.
http://vt100.net/manx/ says there's 4 copies on-line
(
http://vt100.net/manx/details?pn=EK-V4000-OG.A01 )
John A.