Large memory support allows you to set the extended cache size configuration parameter to a value other than 0.
In versions of Adaptive Server earlier than 12.5.4, the wash size of the smallest I/O memory pool in the primary data caches was set to a fixed value. Any configured value was overridden.
Adaptive Server version 12.5.4 allows you to configure the wash size for for the smallest I/O memory pool in the primary data cache.