Transitioning LUNs with mount points using DMMP device names
Before transitioning a LUN with a mount point using a DMMP device name, you must replace the DMMP device name with its corresponding file system UUID number. You must perform specific steps to prepare for the cutover phase and you must remount the DMMP devices on the host after transition. You perform the same procedures for Red Hat Enterprise Linux (RHEL) 5 and RHEL 6.
Preparing RHEL LUNs with mount points using DMMP device names for transition using the Inventory Assessment Workbook
Preparing for the cutover phase when transitioning LUNs with mount points using DMMP device names on Linux hosts