On Tue, 28 Jan 2014, Johnny Billquist wrote:
>RSTS Backup actually generates VMS save sets, the
same format.
That's good to know.
Right. Different PDP-11 OSes use different formats, so it's not really
meaningful to ask about "PDP-11 backup". You need to specify which backup
format you are talking about.
I think I know of at least four.
RSX used to use something called DSC (which stood for Disc Save and
Compress), which was eventually replaced by BRU.
I assume RSTS/E had some backup format in the older days. With RSTS/E V9 (I
think it was), a new backup utility was created, which is the VMS compatible
one.
Wasn't there a DSC/DSC2 in VMS 1.5 and 2.x/3.x?
I'm not aware if RT-11 also had some backup tool,
but I would assume so.
Johnny
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Cory Smelosky
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