Data volume filling level 
Data volume filling level <percentage>%, <number of> pages configured, perm used <perm_used>, temp used <temp_used>
The
filling level of the
data volumes is
high. If the filling level is 100%, the database stops.
If the amount of data that needs administering in the database instance has increased, you may need to add a new data volume.
A large proportion of temporary data pages ( temp used) indicates large amounts of (buffer) results. Find the statement that causes these large amounts of (buffer) results to be created, and check the access strategies for this statement.

For
information on creating optimized SQL statements, see
Optimizer:
SAP DB 7.4.