| Component | Number |
|---|---|
| ADASVC(ADARER)/SVCCLU | One or more per operating system image |
| ADACOM | One or more per operating system image |
| PPT | One per cluster; located in the database Associator |
| Adabas DBIDs | One per cluster; a practically unlimited number per operating system image |
| global cache structures | One per cluster; specified in each nucleus |
| global lock structures | One per cluster; specified in each nucleus |
| Adabas nuclei | Up to 31 per cluster |
