https://www.ibm.com/docs/en/om-db2/5.5.0?topic=collector-kd2-dbnn-pwh-performance-warehouse
KD2_DBnn_PWH - Performance Warehouse
The KD2_DBnn_PWH parameters control the Performance Warehouse behavior in your environment.
pwhperformancewarehouse
https://www.ibm.com/docs/en/om-db2/5.4.0?topic=warehouse-kd2-dbnn-pwh-d2pwobuf
KD2_DBnn_PWH_D2PWOBUF
PE Server PWH DB2 buffer pool
pwh