Before you start the HDF to CFM in-place upgrade process, ensure you understand the
upgrade path available to you and your cluster meets the required prerequisites.
Upgrade path
The upgrade path is to use AM2CM tool to upgrade straight from HDF 3.5.2.0 to CFM 2.1.5 on CDP 7.1.7, 7.1.7 SP 1, or 7.1.8.
