On 01/23/2011 04:48 PM, Rudi Ahlers wrote: > On Sun, Jan 23, 2011 at 6:21 AM, Nico Kadel-Garcia<nkadel at gmail.com> wrote: >> 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. >>> we use the following workaround: - trigger the activity light by running "hdparm -tT /dev/sdX" for the drive in question - watch the lights of all the drives - the one that blinks is sdX; this of course works best if the array is idle This is of course very low-tech, but it does the job. HTH, Kay