How do I clear a block device from my Red Hat Enterprise Linux system?

Solution Verified - Updated -

Issue

After unpresenting some of my storage and clearing my multipath maps, I notice multipath is still listing paths belonging to the removed storage in a failed state, and the block devices are still listed on my system. How can I remove these without a reboot?

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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