On Sat, Jan 22, 2011 at 5:03 PM, Rudi Ahlers <Rudi at softdux.com> wrote: > 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. > > -- This page might help: http://pikawarp.org/?p=139 Talks about setting entries in /sys/class/leds.