VAX 6400 booting saga: barred from using MULTINET (sigh!)

From: Jochen Kunz <>
Date: Mon Dec 10 12:51:40 2001

On 2001.12.10 00:13 Jerome Fine wrote:

> Memorex used to have a web site that listed all the properties of
> DECTape (i.e. I for the TK50 with the name in brown)
DECtape is _not_ the TK[57]0. TK[57]0 is called CompacTape I (TK50) or
II (TK70). My information is based on
and there is written:
   Once you erase a TK50 you can use it in a TK70 drive and vice
   versa, but the TK50 and TK70 tape material is different, and
   the write current of the TK70 drive is different (lower). This
   is not recommended, and should be used for temporary storage for
   which you will suffer no pain if lost.

> (b) The controller must have a buffer of some kind which holds the
> next block of data automatically.
Yes. The TQK70 has some additional buffer that can speed up things
considerably. I
experienced that when I reinstalled 2.11BSD UNIX on my PDP11/73...
Received on Mon Dec 10 2001 - 12:51:40 GMT

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