How to change the device state from offline to running

Solution Verified - Updated -

Issue

  • The command fdisk gives the below error :
# fdisk -l /dev/sdX 
    fdisk: cannot open /dev/sdX: No such device or address
  • The disk is visible in /dev, but the command lsblk gives the same error
# lsblk /dev/sdX
  /dev/sdX: No such device or address

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

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