Using Fast Load for Db2 for z/OS (PFL) were it fails with with contention error:
PFL0075E - Tablespace/Indexspace failed STOP
How to avoid leaving the tablespace in Stopped status?
Currently there is not anything in Fast Load to avoid contention with the object.
The best answer is a procedure change, you may consider adding a START UP ACCESS FORCE step in the event you hit this contention
problem again, that will ensure the tablespace is not left in STOPPED status after Fast Load fails with PFL0075E.