When Adaptive Server starts, it reads the configuration parameters contained in the configuration file for your Adaptive Server.
The values of these variables are used at start-up time to determine how much memory to allocate for various resources needed by Adaptive Server. If sufficient resources are not available to satisfy all the requests, Adaptive Server will not start. This situation most often occurs when one or more erroneously high values are set with the sp_configure command.
Refer to “How to Reset Adaptive Server to Its Default Configuration” for information about resetting configuration parameters.