PC-3000 Forum

Hello everybody,

I have 3 ST96812AS all of them knocking at the spin up.

Can anyone explain me the differences between these 3 logs?

DRIVE 1

Interface task reset
4096k x 16 buffer detected
MERC2 - 1_Disk 0.05 03
Buzz - -17-06 15:55
Head Mask 01,01 - Switch to full int.
Spin Ready
Dwell Cyl - 084F/0214/0256
(P)$Head Mask FFFF - Head Mask FFFF - Head Mask FFFF - Head Mask FFFF

DRIVE 2

Interface task reset
4096k x 16 buffer detected
MERC2 - 1_Disk 0.02 12-
Buzz - 22-05 16:43
Head Mask 03,01 - Head Mask 03,05 - Switch to full int.
Spin Ready
Dwell Cyl - 0A4D/05A3/0644
(P)$Head Mask FFFF - Head Mask FFFF - Head Mask FFFF - Head Mask FFFF


DRIVE 3

Interface task reset
4096k x 16 buffer detected
MERC2 - 1_Disk 0.02 05-
Buzz - 08-06 15:10
Head Mask 03,01 - Head Mask 03,05 - Head Mask 03,06 - Head Mask 03,07 - Head Mask 03,08 - Head Mask 03,09 - Head Mask 03,0A - Head Mask 03,0B - Head Mask 03,0C - Head Mask 03,0D -

Thank you in advance!

All represent failure to initialise head mask, heads are defective in all 3 disks.

I do not know exactly the difference, maybe different revisions of the same HDD initialise Head Mask differently? Or else maybe head map is different on last disk?

yes look like head failure, try to change it and see what happen.