A space type is a classification of how disk space is allocated in Analytics Database. Each space type, such as perm, spool, or temp, is conventionally associated with a particular kind of stored data. For example, the perm space type is disk space allocated to storage of tables, indexes, and permanent journals in the database, and typically is the largest space type in the system.
Teradata Virtual Storage reports on how space types are dynamically managed, according to patterns of data access and the grade of the storage device.