Odd PDP-11 tape related question

From: Zane H. Healy <healyzh_at_aracnet.com>
Date: Tue Jan 13 13:56:37 2004

>Zane H. Healy wrote:
>>I've got a TPC image, that was originally from a MM: drive, and I've written it back out to a MU: drive (4mm in this case). I'm just trying to read the tape, I'm not trying to do anything fancy like boot from it. Is there any reason that I should have trouble doing this?
>> Zane
>What OS, and how are you trying to read it, what format is the tape in,
>how did you create it, etc.?

The OS is RSTS/E and the tape is ANSI, at least I think it's ANSI and not DOS, I'd have to check to be positive. This much I do know, I've converted the TPC file to a SIMH TAP file, and read it without any problem under E11 and SIMH. I've even used E11 to convert it to a RSX TAP image, which I've written to 4mm DAT on the same drive, and I can't read it. I've also taken the TPC file and written it on VMS on the same model DAT drive.

What really mystifies me is that I'm able to read the tape without any problem using E11 running RSTS/E. Yet, I can't read either DAT tape that I've made. I've been able to read other tapes made this way just fine.


| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh_at_aracnet.com (primary)    | OpenVMS Enthusiast         |
|                                  | Classic Computer Collector |
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Received on Tue Jan 13 2004 - 13:56:37 GMT

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