how to control Hard Drive light from Linux?

[SoftDux-Rudi]

Hi all,

Does anyone know how to control a hard drive light from Linux? I'm building a 24bay Linux File server which will run software RAID and I need an easy way for the engineers to see which HDD has gone bad.

Most of our NAS devices has 2 lights on the hard drive cages and they automatically signal a bad one (reg light, light constant on , etc) but I can't figure out how todo this from Linux.

 

[Hydaral]

I tried to find something that did this, a "blink" application or something. I never did find one. Maybe it's just not something that is controllable from the OS level?