[HECnet] Future problems?

[Paul_Koning at Dell.com]

> On Jul 15, 2016, at 2:13 PM, Johnny Billquist <bqt at softjar.se> wrote:
> 
> On 2016-07-15 19:10, Paul_Koning at Dell.com wrote:
>> 
>>> On Jul 15, 2016, at 12:59 PM, Johnny Billquist <bqt at softjar.se> wrote:
>>> 
>>> ...
>>> FLX accessing DOS tapes will "fail" at 2035.
>> 
>> That figures, because the RSTS date format was taken from DOS-11.  I assume you meant magtape; DECtape runs into trouble in 2002 because there the date is only 15 bits (the sign bit is used to mark a contiguous file).
> 
> I'm not even sure if FLX under RSX can access DOS DECtapes... I think FLX only supports DOS magtape format. For disks, it only deals with RT-11 format, I think. I didn't even know that there was a DOS-11 disk format, but thinking about it, it would seem obvious there should be one.

Yes, there is, different from everything else as far as I know.  I think the DECtape format is faintly related.  Some DOS manuals may give some clues, but I've never looked into it or had any exposure to DOS disk file system internals.

	paul