kim@uts.amdahl.com (Kim DeVaughn) (01/27/89)
[ "All sweet things have one thing in common ... a tendency to make you sick." ]
[ --Soolin ]
I have a 20 Meg (formatted) Fujitsu hard disk that I've been trying to
add to my 2090A/Quantum-80s setup. Specifically, it's a MB27676 unit,
and contains a Data Technology Corp. DTC-510B controller board. It's
18 ms., 320 cyl, 8 head, 16 sec/trk, 512 byte/sec.
The Mountlist entries I've been trying for RES3: and DH3: are pretty
much the same as I've been using for the Quantum, with appropriate
changes (Unit = 4, BlocksPerTrack, Surfaces, etc.) I've tried both FFS
and OFS with the same results.
Here's what happens: when I Prep RES3: it *seems* to work fine ... the
access led on the Fuji comes on for about 10-15 sec., and I can hear the
heads moving about. I get no error messages from Prep.
After rebooting, when I "mount DH3:", that too seems to work (no error
msgs, access led comes on for about 1 sec), but when I try to Format
DH3:, Format completes/terminates almost immediately having output exactly
one msg: "Formatting cyl 2, 317 to go". No error msg of any kind; drive
access led blinks twice for a second or so.
Doing a "Dir" results in the requester: "Not a DOS disk in unit 4", and
"Info" says : "DH3: No disk present".
So, it looks like hddisk.device is not up to handling this drive for some
reason, though it certainly is able to talk to it. Anyone have any
suggestions on what else I could try (what about the "Flags" parameter in
the Mountlist ... any magic bits there, etc?) The only strappable option
on the drive control board, other than setting the LUN, is for parity, and
I've tried that both ways.
Alternatively, if hddisk.device really can't handle this drive, anyone have
the source for a skeletal hard disk driver that I could hack on a bit?
Any help would be greatly appreciated ... thanks!
/kim
P.S. For CATS ... is there any technical documentation available for the
2090A and associated s/w (hddisk.device), etc?
--
UUCP: kim@amdahl.amdahl.com
or: {sun,decwrl,hplabs,pyramid,uunet,oliveb,ames}!amdahl!kim
DDD: 408-746-8462
USPS: Amdahl Corp. M/S 249, 1250 E. Arques Av, Sunnyvale, CA 94086
BIX: kdevaughn GEnie: K.DEVAUGHN CIS: 76535,25