To configure CMD to use shared storage for software images:
cmsh% device roles master% use provisioning% set allimages onsharedstorage% commit% device roles <passive head node>% use provisioning% set allimages onsharedstorage% commit
Important note:
While moving the /cm/images to an external NFS server is possible, there are some known caveats.
If the external NFS becomes slow or unavailable, node provisioning may fail because the system can not rsync the software images.
The NFS protocol does not support extended capabilities. These are required to support features such as enroot/pyxis job submission.