On 9/18/2017 12:22 PM, Camiel Vanderhoeven via cctalk wrote:
(these are only 68 MB disks, the smallest
disk supported on the Convex is the 300 MB CDC drive)
Are these EMD drives? They had the higher rotational rate, and included
up to 1.2gb drives in the line.
Our controller and CRC chip couldn't run at the higher rate for the
newer drives, and we could only use the drives like up to the Memorex
300mb drives, and the like.
If they are EMD, you might get by with one of the drives that is higher
capacity, and that has large enough track length, head and cylinder count.
there were no configuration parameters sent by the drive, so if you put
a drive that exceeded the numbers of one of the drives you list on the
system, the system would work fine. We used a low capacity drive size
when vendors brought in drives, before reconfiguring our controller.
(It required prom programming to add a drive).
thanks
Jim
