[Info-vax] strange backup behavior

[B Hobbs]

On Aug 10, 1:42 pm, AEF <spamsink2... at yahoo.com> wrote:
> On Aug 10, 4:22 pm, AEF <spamsink2... at yahoo.com> wrote:
>
> It's as I remember. The BACKUP picks up immediately at the EOF of the
> previous one. The time for successive backups of the same files stays
> about the same:
>
> These are the execution times for BACKUP save operations of the same
> files copied to the same tape, one after the other on the tape. I
> think it's safe to say that BACKUP normally simply picks up on the
> tape where it left off with the previous save set. No rewinding is
> done without /REWIND.
>
> Execution time: 00:01:51.08
> Execution time: 00:01:38.38
> Execution time: 00:01:12.68
> Execution time: 00:01:36.35
> Execution time: 00:00:59.96
> Execution time: 00:01:18.73
>

Thank you AEF for the figures, a few questions though:

  How much was backed up?  Blocks or bytes?
  This was to a 4mm drive, what brand/model?
  This was a real VAX?
  Which VMS version?

If someone with the Charon-VAX emulator could confirm that I'm not the
only one with this behaviour ...