| SYSTEM | System tables / views / stored procedures / SQL Anywhere tables and function definitions | 1 | >1 |
| Other catalog dbspaces | SQL Anywhere tables | 1 | >1 |
| IQ_SYSTEM_MAIN | IQ database structures including IQ rollforward / rollback data for each committed transaction and each active checkpointed transaction / the incremental backup metadata and database space and identity metadata. IQ user objects may be stored here but Sybase recommends that you put them in other main dbspaces | >1 | >1 |
| Other main dbspaces (also called user dbspaces) | IQ objects such as tables / indexes / join indexes and table metadata | >1 | >1 |
| IQ_SYSTEM_TEMP | Set of 1 to n temporary dbfiles that define a single temporary dbspace for a standalone database or multiplex node | >1 | 1 |
| IQ_SYSTEM_MSG | External file that logs messages about database activity | 1 per multiplex node | 1 |
