Using a shared_root resource
A shared_root resource represents a directory that can be used as a root (/) directory by one or more diskless clients. The shared_root resource offers drastic improvements in deployment times compared to the regular root resource, especially on large machine groups.
Anytime the client performs a network boot, the client STNFS mounts the directory specified as the shared_root directory over the root (/) directory to gain access to the shared_root directory. The shared_root directory remains mounted over the root (/) directory on the client as long as the client is running.
Because STNFS is used to mount the shared_root directory, any change made by a client to its root file system is kept local and is invisible to other clients and to the server of the shared_root resource. Any change a client makes to its root file system is also lost when the client is rebooted.
You can only use a shared_root resource with stateless clients. A regular root resource is required for clients that need persistence across reboots.