How to test device mapper multipath failover in my active/passive storage configuration?

Solution Unverified - Updated -

Issue

  • How to test failover is working in Device Mapper Multipath on my active/passive storage configuration? Would like to fail the active paths and see if the I/O continue to flow from passive paths?
  • How can I perform a multipath failover test?

Environment

  • Red Hat Enterprise Linux(RHEL) 5
  • Device Mapper Multipath (DM Multipath)

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