Question related to Sysview for Db2 for z/OS request R/SYSWKDB - Workfile DB Utilization Summary.
Workfile Space Used (KB) / By All Agents For DGTT / Config is field WFSPC-DGTT-PREF-KB.
Workfile Space Used (KB) / By All Agents Except For DGTT / Config is field WFSPC-PREF-KB.
Sysview for Db2 for z/OS shows a value for WFSPC-DGTT-PREF-KB (134218K) significantly larger than WFSPC-PREF-KB (56758K).
On this subsystem there are only two DGTT preferred workfiles with a max capacity of 128GB.
Whereas there are 30 non DGTT preferred workfiles, each at approximately 2GB.
Would expect to see a much smaller value for WFSPC-DGTT-PREF-KB.
Workfile Space Used (KB) 32768 29695K 49152 190976K
By All Agents For DGTT 0 2745344 0 134218K <<<<<<<<<<
By All Agents Except For DGTT 32768 29695K 49152 56758K >>>>>>>>>>
Component: SYSVIEW Performance Management Option for DB2 for z/OS
The identified Sysview for Db2 R/SYSWKDB Workfile DB Utilization Summary fields are the configured space:
Field Name WFSPC-PREF-KB (value 56758K)
TOTAL WORKFILE STORAGE CONFIG (KB)
The total preferred storage (KB) configured for non-DGTT work files in the Workfile Database.
IBM Field Name: QISTWFSTG
Field Name WFSPC-DGTT-PREF-KB (value 134218K)
TOTAL DGTT STORAGE CONFIG (KB)
The total preferred storage (KB) configured for DGTTs in the Workfile Database.
IBM Field Name: QISTDGTTSTG
Field WFSPC-DGTT-PREF-KB refers to the total DGTT capacity and field WFSPC-PREF-KB refers to the total non-DGTT capacity.
Using IBM's description of these fields they describe them as total (KB) configured.
Fields WFSPC-DGTT-USED-KB and WFSPC-USED-KB are storage currently used.