16 Dec
2021
16 Dec
'21
8:07 p.m.
On Dec 16, 2021, at 10:52 AM, Supratim Sanyal
<supratim at riseup.net> wrote:
BTW, the "BE-X083A-BE - DECNET-VAX FULL FUNCTION" thing is not a tape; after
failing to mount it as a tape numerous times, a "od -a" dump looked like a
disk to me, and guess what, it mounted as a RD54.
Based on the size of 256k, I assume it is probably an image of a TU58 DECTAPE-II tape...
which is a (slow) random-access block-oriented device, commonly with an RT-11 filesystem
on it. The .tap extension is misleading because it implies that it is a 9-track magtape
image in SIMH tape format. It really is a tape, but one that looks like a slow disk drive
to the operating system.
If that license came from a TU58, then I would guess that it was originally media for a
VAX-11/750 or VAX-11/730?
--
Mark J. Blair, NF6X <nf6x at nf6x.net>
https://www.nf6x.net/