Try the Micronet utility. We need something that the drive performs the low-level format, and not the software itself. Think of a firmware syscall. I am not at home right now so i cant listen to the physical sound.
But Miniscribe drives are supposed to sweep the stepper motor back and forth at least once, and then begin to hunt for the negative cylinder just before cylinder/track 0. this contains the formatting and geometry information. Then it moves on. This information is highly specific to the controller that formatted the drive. the low level formatting is also specific to the controller.
if any of those tracks are unreadable for any reason, the drive's firmware will continue to hunt over and over for that track until it reads it error free.
If the error is caused by a magnetism issue, Only a low level format will fix this. If its not a magnetic issue, then either the cylinder is damaged on the platter, or the head is bad and in either of those cases there isnt much you can do.
The only way to rule anything out is a true low level format issued from a proper SCSI command to the drive itself.
Sorry, I was confused. Now this makes a bit more sense. I’ve also had this issue with SCSI2SDs before. You are hooking it up internally or externally? Do you have a spare SD card you can test to format on this SE/30? Any other real SCSI HD to test? I’ve had to set up individual SCSI2SDs before on various machines to make it work well. Just ruling anything else out...using a SCSI2SD is a whole different thing.
As previously stated the device I'm testing with works fine on another SE/30 and Mac Portable. It's a SD2SCSI and the filesystem was created on the other SE/30. The drive was just moved from one machine to the other.
By one drive I thought you meant one drive connected at the time rather than a particular drive.
Resolder the logic board? That's a no no for me, I can barely resolder the analogue board, I guess I'll have to find someone who's gonna do the job...
Also other weird thing that happens with the picture is that over time, the picture just becomes wider, you can't see it expanding, you will only notice it when you use the Mac for a few minutes. Any pointers for that?