probe::nfs.proc.lookup — NFS client opens/searches a file on server
nfs.proc.lookup
bitmask0
V4 bitmask representing the set of attributes supported on this filesystem
server_ip
IP address of server
name_len
the length of file name
bitmask1
V4 bitmask representing the set of attributes supported on this filesystem
prot
transfer protocol
version
NFS version
filename
the name of file which client opens/searches on server