Backups [was Re: Is tape dead?]

Paul Koning paulkoning at
Mon Sep 21 09:25:31 CDT 2015

> On Sep 20, 2015, at 8:55 PM, Jerome H. Fine <jhfinedp3k at> wrote:
>> ...
> I used the above example when I created a CD which had files to be used
> with RT-11 in addition to being a normal CD under Windows.  I found that
> for a normal CD under Windows, sectors 0 to 15 (hard disk blocks 0 to 63)
> on the CD were empty.  I don't know if that area is reserved for boot code
> under Windows when the CD is bootable, but my goal did not require the
> CD to be bootable under Windows.

I did something similar a long time ago, when some people at DEC were working to create an "Everything for RSTS/E" CD (similar, I think, to what was done for VMS at that time).  In my utility "rstsflx" I added a mode to produce a split structure somewhat like what you mentioned, but simpler.  The RSTS file system looked like a CD file, and the rest of the CD looked like allocated space to the RSTS file system.

I heard rumors that the CD it was meant for was created, but I never actually saw one.


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