HDERR giving some really strange numbers - Anyone have a clue?

[Brad Isley]

Here's the first one.  I have a clue on this one.
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HDERR ST:71 EF:4 CL:EE CH:2 SN:E SC:2 SDH:24 DMACNT:FFFF DCRREG:9C MCRREG:C700 Fri Apr  6 18:39:19 1990

WD2010 ST=/WrtF/Sekg/Err/ EF=/Abrt/ cy=750. sc=14. hd=4. dr#=0. MCR2:0x0 Fri Apr  6 18:39:21 1990

drv:0 part:2 blk:84919 rpts:1 Fri Apr  6 18:39:22 1990
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I got Milton's hardware notes just a few minutes from osu, and if I'm
reading correctly, I may have faulty power on this one.

The next group is more interesting...
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HDERR ST:51 EF:40 CL:3E CH:3 SN:27 SC:1 SDH:21 DMACNT:FFFF DCRREG:99 MCRREG:8700 Fri Apr  6 21:06:02 1990

WD2010 ST=/Sekg/Err/ EF=/CRC/ cy=830. sc=39. hd=9. dr#=0. MCR2:0x1 Fri Apr  6 21:06:04 1990
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Did you notice sector number 39 up there?  I did!
I'm fuzed and condazed on this one.
It sez 'EF:40' so that means CRC error, right?  What is it doing with 'SN:27' ?
How could it even find the sector?  Maybe it's masking off a bit, using  :17.
But that's still invalid.  OK maybe it's masking with '0x0f', but then it can't
read sector 16, which isn't used anyway.  :-(

But WAIT!  There's more...
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HDERR ST:51 EF:40 CL:3E CH:3 SN:27 SC:1 SDH:21 DMACNT:FFFF DCRREG:99 MCRREG:8500 Fri Apr  6 21:06:05 1990

HDERR ST:51 EF:40 CL:3E CH:3 SN:27 SC:1 SDH:21 DMACNT:FFFF DCRREG:99 MCRREG:8500 Fri Apr  6 21:06:06 1990

HDERR ST:71 EF:4 CL:A8 CH:1 SN:20 SC:2 SDH:22 DMACNT:FFFF DCRREG:FA MCRREG:C300 Fri Apr  6 22:24:00 1990

WD2010 ST=/WrtF/Sekg/Err/ EF=/Abrt/ cy=424. sc=32. hd=10. dr#=0. MCR2:0x1 Fri Apr  6 22:24:02 1990

drv:0 part:2 blk:45840 rpts:1 Fri Apr  6 22:24:02 1990

HDERR ST:51 EF:40 CL:3E CH:3 SN:27 SC:1 SDH:21 DMACNT:FFFF DCRREG:F9 MCRREG:8B00 Fri Apr  6 23:41:22 1990

WD2010 ST=/Sekg/Err/ EF=/CRC/ cy=830. sc=39. hd=9. dr#=0. MCR2:0x1 Fri Apr  6 23:41:31 1990

drv:0 part:2 blk:94555 rpts:1 Fri Apr  6 23:41:38 1990
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I'm going to run diags, etc.
If anyone has any other ideas, please let me know.

Thanx!
-- 
...!emory!stiatl!slammer!brad
...!gatech!bagend!slammer!brad   (Brad Isley)