#vi /etc/sysctl.conf

soft nproc 2047
hard nproc 16384
soft nofile 1024
hard nofile 65536

#vi /etc/security/limits.conf

oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536

#vi /etc/profile

if[ $USER = "oracle" ]; then
if[ $SHELL = "/bin/bash" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi

#vi /etc/profile

if[ $USER = "oracle" ]; then
if[ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi