Western Digital WD1002FBYS head click noise (#10987106)

@dhl:

dhl wrote:
yes, I would definitely be interested in hearing your recording. Please post the sound and let us know the URL.

Here it is: http://www.zshare.net/audio/724901124203f6fe/
Sorry for the advertisements. Maybe you can download it and host it yourself.

dhl wrote:
... His theory is that the SATA controller or firmware is sending a repeating "wake-up" signal to the drives, or that the drives are not getting stable power from the power supply. In either case, it's a problem caused by the host device, i.e. the ReadyNAS, not the drives.

Maybe you are right and the problem is caused by the controller or host device. But i think it is also the drive that has to react the right way to wrong signals: if it already woke up, why can't it ignore the signal? So it must be a combination of the controller and drives.

I did some investigation today: when you search for WD and clicks, you'll find a lot of people complaining about Intellipark, that is enabled by default on the WD Green series and parking every 8 secs. Our drives are not green drives, but what if.. There is a utility called "WDIDLE3.EXE" to view or change the timeout for Intellipark. I succeeded in booting DOS and viewing the status. Too bad, my drives had Intellipark disabled, i even wonder if they have that feature, but it was worth the try.

O, another thing i discovered: when i reboot my server, clicking starts when Windows is loading, probably just after driver of the controller has loaded. Before that, no clicksound. I also booted up with the Ultimate Bootdisk, which doesn't have the driver for the controller. No clicksound, even after some idletime. In my opinion, this indicates that there is a problem with the combination of the Adaptec Controller and these drives.

Lets hope WD will respond to my email with some clue.