Document link:https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/considerations_in_adopting_rhel_8/index

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Suggestions for improvement:I need the steps needed to move existing data drives from RHEL7 cluster to RHEL8 cluster and have been unable to find anything on this subject except that RHEL 7 PCS cluster can't use LEAPP. 

Additional information: Please provide a list of steps to accomplish this goal so I don't lose 7tb of client data.