<<Help!  somebody droped off this three and a half inch SCSI drive and I
cant id it.  I deal with wide SCSI all the time, so this 80 pin connector
makes me frumple..  I have to know what this is! Model # HP/quantum
 D-3583  80 pin SCSI.  It has a 80 pin high density connector and no std.
power in as well as no-jumpers. What is this thing?>>

The HP D3583[A or B] is a 4.2GB Fast Single-ended SCSI hot-swap drive for
the NetServer line (and maybe other uses also). The "A" part number is
the old "beige-grey" color of the NetServer LS/LH/LC models; the "B" part
is the new "pink-grey" color that matches the current LH, LX, and PX
servers. The actual drive mechanisms supplied under this part number may
be Quantum or IBM (or probably others; we have 5 of them; 3 are Quantums,
2 are IBM; I'd expect that there are also Seagates out there, and maybe
Maxtor and Micropolis). From what I remember from the installation, the
actual Quantum mechanism is an SCA version of the XP34300; don't know
about the IBM. I'm fairly sure that these drives are 8-bit SCSI; the
connector supports Wide SCSI, but there's no indication that HP used
16-bit drives.

The 80-position connector is what is called "Single Connector
Attachment", a.k.a. "SCA". The SCA spec defines the combined
signal+power+SCSI ID interface typically used for hot-swap drives like
these. Termination and SCSI ID selection are actually handled on the
enclosure that contains the SCA drives.

Steve Dirickson         WestWin Consulting
(360) 598-6111  [log in to unmask]