To increase the soft limit for C shells, enter:
limit descriptors n
For Bourne shells, enter:
ulimit -Sn new_value
where n is the current value for the soft limit, and new_value is the value to which you want to increase the soft limit.
You can use the preceding commands in your RUN_server_name file to increase the hard and soft limits. The RUN_server_name file is a Bourne shell script, be sure to use the Bourne shell versions of these commands in the RUN_server_name file.