Find or change the current file descriptor values.
For Sun Solaris, you can set both soft and hard limits for file descriptors. The soft limit can be increased up to the hard limit by the user, but the hard limit can be increased only by someone with root permissions. The soft limit determines the number of open file descriptors available to an Adaptive Server engine. The limit is 10,000.
Although most of the open file descriptors are available for user connections, a few are used by Adaptive Server for opening files and devices.
See Setting Configuration Parameters in the System Administration Guide, Volume 1.