On Fri, Dec 15, 2017 at 10:34 AM, Ethan Dicks via cctalk <cctalk@classiccmp.org> wrote: > On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch > <systems.gli...@gmail.com> wrote: >> vtserver does indeed work for transferring RL02 contents to a binary image, >> suitable for use with SIMH or E11 or whatever. > > Yep. I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours. > >> Be advised, it takes a *long* >> time, even on a 11/73 with the serial port turned up to 38400 bps. > > Has anyone done any console serial port hacking for speed on Qbus or > Unibus? On something integrated like a KDF11-B it might not be so > easy, but maybe a DLV11J or a DL11W? > > I'd think hitting 115200 would be really sweet, if everything can keep > up. Totally worth some experimentation to see what part gives out at > ludicrous speed. > > -ethan
My method of creating images of several RL02 disks was to set up a PDP-11 system running 2.11BSD with an RL02 controller and Ethernet interface, then 'dd' the disks to image files on the local system and then FTP the image files out to a modern system. Still seemed slow, but not as slow as a serial port connection.