[Info-vax] BACKUP to the null device

[Bob Koehler]

In article <alpine.LFD.2.00.1102081327020.13023 at libra.gmcl.internal>, Rob Brown <mylastname at gmcl.com> writes:
> 
> I am going to wave my hands and guess that it is because NL: is not a 
> tape device, the only device type for which you are not required to 
> specify "/SAVE_SET".  Let's call it an "undocumented permanent 
> restriction".

   I think it is fully documented.