Why is system not detecting more swap after enlarging the swap logical volume ?

Solution Verified - Updated -

Issue

  • Resized the Logical Volume on which swap volume was present to make it larger. After re-activating the swap, it still uses the old size. How to enlarge the swap volume ?
  • System not detecting extended swap volume.

Environment

  • Red Hat Enterprise Linux (RHEL)
  • LVM
  • Swap on top of LVM

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