8 Jun
2012
8 Jun
'12
1:44 p.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.
8 Jun
8 Jun
4:14 p.m.
Peter Coghlan wrote:
No Peter. It is the disk, and I bought is as defective. The LED Connector
on the Board has steady 0.9Volts. Nothing Blinks and I think the SCSI Chip
(from Emulex) on the PCB must be dead, since it stops the SCSI Bus.
I have 2 Tape drives on that bus and an external cable that is going to an
Drive Case with a seperate PSU. I'm using that Case and that (2nd.) SCSI
Bus for testing, other Disks are working.
Regards,
Holm
--
Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe,
Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583
www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741
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.
4586
days inactive
4586
days old
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