85mb Micropolis in a Microvax II?

From: Allison J Parent <allisonp_at_world.std.com>
Date: Mon Nov 23 11:10:22 1998

< From: CLASSICCMP_at_trailing-edge.com

< >doable but, near unimplementable do to the lack of Qbus. The more comm
< >situation is unsupported, IE: DEC didn't consider it marketable or test
< >it exactly that way. Two RDxx disks in a ba123 is an example.
<
< Two RD5x's in a BA123 was definitely a supported configuration, and is
< listed in the late-80's DEC catalogs.

I meant ba23 not 123.

< Two RD3x (half-height) disks in a BA23 is also supported, and indeed is
< the reason behind the 6-button BA23 front panel. Many 11/53
< configurations were shipped from the factory this way.

It was never a validated MicroVAX configuration though I've built three
over the years.

< Two full-height hard drives in a single BA23 was never officially suppor
< (at least for the various microPDP-11 configurations), because
< they refused to support a base box sold without removable media.

Correct. The group in DEC that balked at that was Field Service as a
microvax1/II was "...not adaquately diagnosable without removable media".
Marketing VIA CSSE was forced to consider that an unsupportable
configuration though electronically solid and desireable if used for
LAVC member or with external removable media.

Allison
Received on Mon Nov 23 1998 - 11:10:22 GMT