Using a root resource
A root resource represents a directory in which client root directories are maintained.
When a root resource is allocated to a diskless or a dataless client, NIM creates a subdirectory for the client's exclusive use. This allocated subdirectory is subsequently initialized when you perform the dkls_init or dtls_init operation.
After initialization, anytime the client performs a network boot, the client NFS mounts this subdirectory over "/" to gain access to the root directory that has been set up for its use. This subdirectory remains mounted over / on the client as long as the client is running.
Note: Whenever this resource is deallocated, NIM removes the subdirectory that was created for the client's use. Therefore, any files you want to save in the client's subdirectory should be backed up before you deallocate a resource of this type.