How does the polling_interval setting in multipath.conf relate to the times between polling a path?

Solution Verified - Updated -

Issue

It is taking significantly longer than polling_interval seconds to detect a failed path to a LUN. How does the polling_interval factor into the time between checking a path's health?

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Using device-mapper-multipath

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