The space required by the TIBCO BusinessEvents® Extreme installation (typically less than 2 Gigabytes).

If using file based shared memory, the space required by the shared memory file. This size is configurable and set at node installation time. System V shared memory does not use disk space for storing the shared memory.

Swap space on the system, at least the same size as physical memory.

Space for node log files. In typically production operation not much space is needed, but these files can grow over time, and can grow at faster rates if extra system tracing is enabled, or if there are many exceptions or deadlocks in the system. 1 Gigabyte should be a sufficient amount of space to start with.

Space for application logging. This is application dependent.