Best practice procedure for staging a WWN change for SAN boot device for disaster recovery exercise

Solution Verified - Updated -

Issue

  • How to manage SAN based boot device WWN(world wide number) for the Disaster recovery exercise when performing DR test.

  • How to prepare booting from a SAN device from the recovery site with the least manual changes to configuration files

Note: WWN is also known as WWID

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • SAN storage Array

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