VAX DSSI dyssentary?

From: John Allain <allain_at_panix.com>
Date: Fri Jun 20 11:29:00 2003

I have a 'new' microVAX 4000-200 here that has a few small oddities
with it, and I could use some advice. Number one is that it will not boot.
I tried 'b dia0' and 'b/r5:e0000001 dia0' and both times it's nothing until
timeout. Number two is that 'show dssi' and 'sho dev' show no disks, nor
the TF85. After some initial confusion where one or more disks were
tried uncabled before powerup, the DSSI terminator was discovered
missing, so I used one from another machine.

My questions are, are there other tests for a disk besides booting it,
and, what could be wrong with the DSSI bus?
I tried other DSSI ID's on the disks but no real change.
Do the ID's have to start with 0?

A tidbit with the terminator off was that the countdown tests went from
95.. to 60.. and then autobooted immediately back to 95 without continuing
down. I could have sworn at the time that 'sho dssi' worked then.
Probably unreleted but FYI.

TIA
John A.
Received on Fri Jun 20 2003 - 11:29:00 BST