Adaptive Server dynamically allocates physical memory, which means you can change the memory configuration of Adaptive Server without restarting the server.
Adaptive Server does not dynamically decrease memory.
It is important that you accurately assess the needs of your system,
because you may need to restart the server if you decrease the memory
configuration parameters and want to release previously used physical
memory. See “Dynamically decreasing memory configuration parameters”.
Consider changing the value of the max_memory configuration parameter when:
You change the amount of RAM on your machine.
The pattern of use of your machine changes.
The configuration fails because max_memory is insufficient.