[CentOS] SAS storage arrays, C6, and SES lights
Pasi Kärkkäinen
pasik at iki.fiMon Aug 15 22:31:31 UTC 2011
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On Mon, Aug 15, 2011 at 11:19:22AM -0700, John R Pierce wrote: > So I'm curious how SAS JBOD arrays and linux MDraid as implemented in > CentOS6, and SES (SCSI/SAS Enclosure Services) backplane controllers > 'get along' and how much configuration is needed to get the warning > lights to work properly. > > scenario: whitebox server with a SAS backplane or two, daisy chained > on a SAS HBA (like an LSI Logic 2008), and disks organized as several > raid5/6 using linux mdraid. Does this system have to be configured to > ensure that the activity and failure lights match the drive bays, or > does the SAS/SES spec all sort that out 'plug and play' ? > > does mdraid properly set those warning lights automatically on a failed > raid element? > Afaik the LEDs won't work out-of-the-box. There's no daemon currently in Linux responsible for monitoring disk status and lighting up SES LEDs accordingly.. Feel free to write such a daemon! :) (or even better, prove me wrong) -- Pasi
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