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