8 Jun
2012
8 Jun
'12
9:44 a.m.
I have here an 1,3Gbyte DEC Drive, 5,35 Inch full heigth. (Seems to have
the old CDC WREN Mechanics)
It looks, that the drive electronics are toast. It don't spin up
the BLDC motor and it blocks the SCSI Bus where the drive is connected.
I had similar problems with two RZ55 drives in VAX2000 size boxes. They
blinked the activity LED several times at power on but didn't spin up. I
thought the were counting out a fault code.
The bus issue turned out to be a bad cable and the reason they didn't spin
up was because they weren't supposed to spin up until commanded to by the host.
(Just before trying them, I'd tried a different disk that is supposed to spin
up at power up but didn't due to a power supply failure so I was in the wrong
frame of mind for disks that don't spin up automatically. That's my excuse
and I'm sticking to it!)
Regards,
Peter Coghlan.