[clug-talk] Poweredge Disk Problem

[William Astle]

On 10-05-31 06:35 PM, Ron Campbell wrote:
> In any case, I don't think that is the biggest problem, the drives
> themselves are not dependant on the PERC controller to 'spin up'.  They
> should do this even if they only have power connected.  I think you have
> drive / power problems, not a PERC controller problem.

That's not strictly true depending on the hardware. I'm not entirely 
certain how this is accomplished but, in some systems, the spin-up is 
actually controlled by the raid controller itself. Whether this is 
accomplished through some funky stuff in the enclosure/case or if there 
is some sort of signalling on the data cable, I know it is done - 
usually to limit power draw during startup.

Of course, the drives will spin up automatically in the absence of any 
stimulus to the contrary - they wouldn't be terribly useful if they didn't.

All that said, I'd guess you have a disk that is failing in a way that 
the controller is not able to handle.

-- 
William Astle
lost at l-w.ca