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How to shrink an LVM Logical Volume

Solution Verified - Updated 2018-03-12T16:08:56+00:00 -

Issue

How Do I Shrink A LVM Logical Volume?
I have a 100Gb LVM logical volume. I need another logical volume that is 20Gb. How do I do this?

Environment

Red Hat Enterprise Linux (RHEL) 5
Red Hat Enterprise Linux (RHEL) 6
Red Hat Enterprise Linux (RHEL) 7

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