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On 1/24/2013 8:38 AM, Bart Van Assche wrote:
> Let me ask this another way. SAN users expect that the LUN list at the
> initiator side gets updated automatically after a SAN configuration change.
> How should a SAN system communicate to a SCSI initiator that the LUN list
> has been changed ? Some FC SAN systems send a LIP after a configuration
> change to force the initiator to rescan LUNs. But how to
What I think your looking for is RSCN (Registered State Change
notification)
. Hook that, and then check the name server. This will tell you when ports get
added/removed. You can then report luns against lun 0 of all the known target
ports. This allows you to transparently detect changes.
Otherwise, you run the risk of trapping UA's in the lower level
portions of
the stack that _REALLY_ need to be propagated to the controlling driver or
application.
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