[Info-vax] Backup TK50 tapes

[Bob Koehler]

In article <kg970a$cgu$1 at tdi.cu.mi.it>, supervinx <nessuno at libero.it> writes:
> 
> 1) May I create those images with the available hardware ?

   I'd get TCOPY to get the BACKUP save sets from tape to disk, but
   you can try ordinary COPY first, if you want.  Just mount the tape
   as a labeled tape and copy the files by wildcard or name, just as
   if they were on a disk, but omit the directory part.

       $ MOUNT/NOASSIST/OVER=ID MSA0:
       $ COPY MSA0:*.* disk:[dir]

   BACKUP is supposed to use non-standard error recovery that sometimes
   COPY does not understand, but TCOPY does (when reading the tape).  I
   don't know if this is really an issue other than on 9-track tapes.
 
> 2) How can I create if not a bit-by-bit copy a functionally equivalent one ?
>  Will COPY/LOG from the TK70 to a simh virtual tape (I have a cluster handy) do this ?

   If you can get to the image from simh, you can use COPY to put backup
   save sets on it.  Initialize and mount the tape as a labeled tape,
   and copy the savesets by name.
   
   There is also a saveset manager product that can do all this.  I
   dont' recall whether it is included in the hobbyist PAKs.