Verifying that RHEL LUNs are ready for transition using the Inventory Assessment Workbook

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If your Red Hat Enterprise Linux (RHEL) 5 or RHEL 6 LUN is configured with a device mapper multipath (DMMP), you should verify that a file system is not configured before you transition the LUN from Data ONTAP operating in 7-Mode to clustered Data ONTAP.

This procedure applies to copy-based transitions and copy-free transitions.

Steps
  1. Gather pretransition information from the Inventory Assessment Workbook.

  2. Check whether the DMMP device entry is present under the SAN Host File system tab.

    If the DMMP device entry is not present, a file system is not configured and you can transition the LUN.