NFS - III
timeo=n The value in tenths of a second before
sending the first retransmission after an
RPC timeout. The default value is 7 tenths
of a second. After the first timeout, the
timeout is doubled after each successive
timeout until a maximum timeout of 60 sec
onds is reached or the enough retransmis
sions have occured to cause a major time
out. Then, if the filesystem is hard
mounted, each new timeout cascade restarts
at twice the initial value of the previous
cascade, again doubling at each retransmis