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)
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