A primary object to be stored to the DB2 sublevel of the OAM storage hierarchy can be inserted into the 4 K object table, the 32 K object table, or the LOB Storage Structure. Figure 1 shows how OAM uses the object size, the LOB keyword in the IEFSSNxx PARMLIB member, and the SYSIBM.SYSTABLES table to determine which table should be used to store the object.