Re: SAS storage arrays, C6, and SES lights

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Aug 16, 2011 at 07:03:01AM -0700, John R Pierce wrote:
> On 08/16/11 12:59 AM, Pasi Kärkkäinen wrote:
> > ie. you need a daemon/tool that monitors status of disks,
> > and keeps the Linux disk<->  ses slot mapping up-to-date.
> 
> i'm amazed this doesn't exist.   isn't this a really common problem with 
> storage arrays?
> 

It is. I guess that's one of the reasons why many people still use hardware RAID adapters.. 
(firmware of the hardware RAID adapter takes case of the SES/LED management.)

Someone should start an opensource project to build this kind of management daemon
for software RAID on Linux. It's not very difficult.. someone just has to do it :)

The only solution that I'm aware right now is Linux dm-raid.. 
I think it can handle some LEDs on some chassises. But that's implemented in kernel-driver..

-- Pasi

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