You can display or configure SMF NFS properties by using the sharectl command. For example:
# sharectl get nfs servers=1024 lockd_listen_backlog=32 lockd_servers=1024 lockd_retransmit_timeout=5 grace_period=90 server_versmin=2 server_versmax=4 client_versmin=2 client_versmax=4 server_delegation=on nfsmapid_domain= # sharectl set -p grace_period=60 nfs
For details, see nfs(4).