CPU and Storage Metrics

This topic shows detailed information about Statistics - CPU and Storage Metrics.

This block shows information about CPU usage and storage metrics gathered by the z/OS® Resource Measurement Facility (RMF) interface. The subsystem parameter ZOSMETRICS must be set to YES for enabling Db2 to retrieve data from RMF.

Statistics - CPU and Storage Metrics

The field labels shown in the following sample layout of Statistics - CPU and Storage Metrics are described in the following section. 


CPU AND STORAGE METRICS                QUANTITY
---------------------------  ------------------
CP LPAR                                    4.00
CPU UTILIZATION LPAR                     255.47
CPU UTILIZATION DB2                        0.04
CPU UTILIZATION DB2 MSTR                   0.00
CPU UTILIZATION DB2 DBM1                   0.00

UNREFERENCED INTERVAL COUNT            65535.00     
REAL STORAGE LPAR      (MB)             3071.00
FREE REAL STORAGE LPAR (MB)              268.00
USED REAL STORAGE DB2  (MB)              240.00

VIRTUAL STORAGE LPAR   (MB)            17051.26
FREE VIRTUAL STOR LPAR (MB)            13828.00
USED VIRTUAL STOR DB2  (MB)              332.00
CP LPAR

The number of standard central processors (CPs) on the logical partition (LPAR) at the end of the defined Monitor III gatherer time interval (called MINTIME). This value does not include ZIIPs. This value is from Resource Measurement Facility (RMF) field CPUG3_PRCON.

Field Name: QWOSLNCP

CPU UTILIZATION LPAR

The percentage of the MINTIME time interval during which RMF reported that the entire LPAR was in use, averaged for a single processor. This value is calculated using Resource Measurement Facility (RMF) field CPUG3_LOGITI.

Field Name: QWOSLPRU

CPU UTILIZATION DB2

The percentage of the MINTIME time interval during which RMF reported that all Db2® address spaces were in use, calculated for a single processor.

Field Name: QWOSDB2U

CPU UTILIZATION DB2 MSTR

The percentage of the MINTIME time interval during which RMF reported that the Db2 MSTR address space was in use, calculated for a single processor.

Field Name: QWOSMSTU

CPU UTILIZATION DB2 DBM1

The percentage of the MINTIME time interval during which RMF reported that the Db2 DBM1 address space was in use, calculated for a single processor.

Field Name: QWOSDBMU

UNREFERENCED INTERVAL COUNT

The Unreferenced Interval Count (UIC). This value is RMF field GEIAHUIC_VE.

Field Name: QWOSLUIC

REAL STORAGE LPAR (MB)

The total real storage in the LPAR, in MB. This value is derived from RMF field GEIRPOOL_VE, which is the number of online real storage frames.

Field Name: QWOSLRST

FREE REAL STORAGE LPAR (MB)

The free real storage in the LPAR, in MB. This value is derived from RMF field GEIRAFC, which is the number of available real storage frames.

Field Name: QWOSLRSF

USED REAL STORAGE DB2 (MB)
The real storage used by Db2 subsystems, in MB. This value is the sum of the following values for all Db2 address spaces in the LPAR, converted to MB:
  • The number of frames for swapped-in users. This value is derived from RMF field ASIFMCT_VE.
  • The number of frames for idle users. This value is derived from RMF field ASIFMCTI_VE.

Field Name: QWOSDRSU

VIRTUAL STORAGE LPAR (MB)
The total virtual storage in the LPAR, in MB. This value is the sum of the following values for all address spaces in the LPAR:
  • The number of frames for swapped-in users. This value is derived from RMF field ASIFMCT_VE.
  • The number of frames for idle users. This value is derived from RMF field ASIFMCTI_VE.
  • The number of auxiliary slots. This value is derived from RMF field ASIAUXSC_VE.

Field Name: QWOSLVST

FREE VIRTUAL STOR LPAR (MB)
The free virtual storage in the LPAR, in MB. This value is the sum of the following values, converted to MB:
  • The total real storage in the LPAR (QWOSLRST)
  • The number of currently available slots (RMF field GEISLTA)

Field Name: QWOSLVSF

USED VIRTUAL STOR DB2 (MB)
The virtual storage used by Db2 subsystems, in MB. This value is the sum of the following values for all Db2 address spaces in the LPAR, converted to MB:
  • The number of frames for swapped-in users. This value is derived from RMF field ASIFMCT_VE.
  • The number of frames for idle users. This value is derived from RMF field ASIFMCTI_VE.

Field Name: QWOSDVSU