On 11/12/15 4:00 PM, Mouse wrote:
However, I _think_ some old Sun and MicroVAX machines play in that space; I've seen Qbus hardware that talks to drives with card-edge connectors and I've seen SCSI-to-cardedge interfaces on Suns of Sun-3/260 vintage. I don't know the details of ST506, ESDI, and all that, but it strikes me as at least _possible_ that something in that line might be able to help.
Not really. Sun used Adaptec 4000's for MFM and Emulex MD21 for ESDI DEC did its own thing, Emulex sold into that space with MFM/ESDI but with their own formats. Dave G's MFM emulator could read it, but just finding a serial block transfer program that can cope with bad sectors would probably be easiest. It wouldn't even be that difficult to write one if the system still knows about the disk geometry in the CMOS RAM and you can use BIOS calls.
