paths in multipath map using RDAC and AVT may randomly failover or change ownership in RHEL

Solution Unverified - Updated -

Issue

  • Why do I see path failovers using an RDAC array with AVT enabled when the devices are accessed by multiple hosts simultaneously, such as in a cluster?
  • Why do paths suddenly get marked ghost and fail over so often on an RDAC-based array?

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • RDAC-based storage array with AVT (Auto Volume Transfer) enabled

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