How to setup/configure device-mapper multipathing in Red Hat Enterprise Linux?

Solution Verified - Updated -

Issue

  • Enabling device-mapper multipathing in Red Hat Enterprise Linux.
  • How to setup/configure device-mapper multipathing in Red Hat Enterprise Linux?
  • We have allotted SAN LUN and attached them to RHEL 5 server. Need help in multipath configuration on my linux server?

Environment

  • Red Hat Enterprise Linux(RHEL) 4.2+, 5, 6, 7,
  • Device Mapper Multipath(DM Multipath)

Note:

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