The indicated storage pool cannot have a space trigger defined, because it is not associated with a DISK-type or a FILE-type device class, or it is a RECLAMATIONTYPE=SNAPLOCK storage pool.
The server does not process the command.
Use the DEFINE SPACETRIGGER command to create a space trigger with a storage pool whose device class is of type DISK or FILE, or is not a RECLAMATIONTYPE=SNAPLOCK storage pool.