Ensure that sufficient swap space is available for Solaris. The amount of swap available can be obtain by executing 'swap -l'. If the number of free blocks is low, you can add swap files while the system is running by executing 'mkfile' and then 'swap -a'. See the Solaris man pages on 'mkfile' and 'swap' for more details. If the server has been started from a non-root user ID, ensure that the Solaris process limit per user is sufficient for the server. You can tune the 'maxusers=##' parameter in the /etc/system file to increase the number of number of users that can be on the system at one time. This will also force the kernel to allocate more memory/swap for user-processes. A system reboot with the 'reconfigure' option is required for the new user settings to take effect. It may be necessary to decrease the maximum number of client sessions by changing the MAXSESSIONS option in the server options file.