The following list shows the basic command syntax for some common NFS troubleshooting tasks in the Oracle Solaris 11.3 release. For more information, see the nfsref(1M) and nfsstat(1M) man pages.
Remove all file, record, and share locks for an NFS client
$ clear_locks -s hostname
Display file system operations statistics by file system type and by mount point
$ fsstat nfsversnum nfsversnum filesystem
Display NFS server statistics
$ nfsstat -s
Display the current NFS information
$ nfsstat -m
Display stack trace for NFS process
$ /usr/bin/pstack nfs_process_id
Display RPC service information for a host
$ rpcinfo -s hostname