Main Page | Report this Page
Computers Forum Index  »  Computer Architecture - Storage  »  SMD-E specification wanted...
Page 1 of 1    

SMD-E specification wanted...

Author Message
Stephen Fuld...
Posted: Mon May 25, 2009 7:56 pm
Guest
Eric Smith wrote:

snip

Quote:
Just out of curiosity, why do you want this?

I've got about a hundred ST41097J SMD-E drives from PDP-11 systems, some
of which may contain PDP-11 software that I'd like to save. It isn't
practical to do anything with the original controllers (made by System
Industries), but it shouldn't be too hard to interface them to an FPGA
and extract the contents.

I've got the OEM manual for the ST41097J, but it doesn't give electrical
specs. It just references the SMD-E Interface Specfication.

Remember, SMD just gave you access to the raw bits on the drive. In
order to recover the data, you would need to understand the format of
the headers, the sizes of the data fields and gaps, and whatever ECC was
used. These would be a function of the SI controller, not the drive, so
you need to get information on them as well.


--
- Stephen Fuld
(e-mail address disguised to prevent spam)
 
 
Page 1 of 1    
All times are GMT
The time now is Sat Nov 28, 2009 2:23 pm