At Sat, 22 Jan 2011 14:48:59 -0800 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> On 01/22/11 2:03 PM, Rudi Ahlers 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.
> >
>
> i can't answer your actual question, but generally those backplanes have
> a "SAF-TE" or "SES" chip on them which appears as a seperate SCSI/SAS
> device, and the system communicates with this to manage drive status
> includinng indicators. I have no idea how you get this working in
> Linux, however, but maybe this is sufficient clue to help find your answer
I believe there is a package that understands how to talk to the SAF-TE
device. It might be in epel or rpmforge.
>
>
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