This amount of memory will vary for different platforms and how the system is used. For example, UNIX file systems do more file buffering than UNIX raw partitions, so the operating system has a higher memory requirement. Most operating systems will use a large percent of available memory for file system buffering. You should understand the buffering policies for your specific operating system to avoid over-allocating memory.
In addition, other applications that run in conjunction with Sybase IQ (such as query tools) have their own memory needs. See your application and operating system documentation for information on their memory requirements.
