12 Nov
2015
12 Nov
'15
7:16 p.m.
On Thu, 12 Nov 2015, 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.
If the hard disk is an XT ST506/412 interfaced drive, using the original
OEM IBM hard disk controller (made by Xebec), then it can be easily
switched to another XT using the original OEM IBM hard disk controller.
Other hard disk controllers, including other models from Xebec!, may not
recognize the format!
Other controllers could probably read at a sector level, iff you're
willing to write some minor INT13h routines. (some number sectors from
0, some from 1, etc.)
AT hard drives (OEM controller is WD) seem to be reasonably
interchangeable from one machine to another.
ESDI (mostly WD -7 controllers) will probably interchange.
RLL will often not work with a different make controller.