| Summary information | |
|---|---|
| Default values | 1536 pages (32-bit version) 3072 pages (64-bit version) | 
| Minimum values | 650 pages (32-bit version) 1300 pages (64-bit version) | 
| Status | Dynamic | 
| Display level | Basic | 
| Required role | System Administrator | 
The size of shared class heap parameter specifies the shared memory space for all Java classes called into the Java VM. Adaptive Server maintains the shared class heap server-wide for both user-defined and system-provided Java classes.
If you change the size of shared class heap, you must change the total logical memory by the same amount.