How to transfer data FAST?

Guy Sotomayor ggs at shiresoft.com
Wed Jun 22 10:50:38 CDT 2005


On Wed, 2005-06-22 at 07:13 +0200, Philipp Hachtmann wrote:
> Hi,
> 
> after several cleaning orgies, my SMD disk (AMPEX DFR-996, see other 
> posting) seems to start working.
> Now I want to backup the data contained on the disks. These are RSX-11 
> volumes. I cannot read them under RT11. And I don't know if I can make a 
> diskette RSX-11 to inspect the data. Or is there a preogram which runs 
> on rt11 and is able to understand rsx11 filesystem? That would be great!
> 
> My first idea for the backup was "copy/device dm0: tt:" which works. But 
> there is no error correction and still only 19200 baud.
> 
> So tell me, what are the really cool methods to transfer data between a 
> PC and a real PDP11 at a reasonable speed? SCSI controller and SCSI 
> disk? Something else? Ethernet?
> 
> Or is a backup over serial line a normal thing...?

I found that the best way to backup/restore is to use tape.  I have a
TU80 on the PDP and a SCSI 9-track on the PC.  Works great and is much
faster than the serial line.

-- 

TTFN - Guy



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