Using the information in the Partition Data Report
When RMF is running in a Processor Resource/Systems Manager (PR/SM) environment in LPAR mode, the Partition Data Report section of the CPU Activity report provides data about all configured partitions active at the end of the reporting interval, independent of the operating system running in each partition.
When RMF is running on a z/OS guest in a z/VM guest environment, and the Monitor I data gatherer option VMGUEST has been set when the SMF record was collected, then the report section provides data about the z/OS guest system. If you want information about another z/OS guest system, you can run RMF separately on that guest system.
- Header information
- Partition data
- Logical partition processor data
- Average processor utilization percentages
The header information gives an overview of the LPAR mode characteristics:
- MVS partition name
- Image capacity — information related to software pricing
- Number of configured partitions
- Number of physical processors in total and per type
- Wait completion indicator
- Dispatch interval
- If a group of LPARs on the same CEC is managed towards a combined capacity limit, the name of the group and the common capacity limit is displayed
- Capping information
The section PARTITION DATA
is grouped by general purpose and special purpose
processor types and provides the following information:
- Name
- Status
- Boost type
- Weighting share of resources
- Defined and consumed service units
- Capping information
LOGICAL PARTITION PROCESSOR DATA
provides the following information
about the partition's processors: - Number and type of processors assigned to this partition
- The partition's effective dispatch time
- The partition's total dispatch time
AVERAGE PROCESSOR UTILIZATION PERCENTAGES
provides the following
information about the partition's processors: - Logical constraint percentages. If multithreading is enabled, the percentages shown for logical
processor resources can be applied to logical core resources.
- The partition's average effective utilization of the logical processor resource
- The partition's average total utilization of the logical processor resource
- Physical constraint percentages. If multithreading is enabled, the percentages shown for
physical processor resources can be applied to physical core resources.
- The average LPAR Management utilization of the physical processor resource on behalf of the partition
- The partition's average effective utilization of the physical processor resource
- The partition's average total utilization of the physical processor resource
Field Heading | Meaning |
---|---|
Header Information | |
MVS PARTITION NAME | The partition running the z/OS system which requested this report. VMSystem is displayed if the report was requested by a z/OS system running in a z/VM guest environment. |
IMAGE CAPACITY | CPU capacity available to the MVS image measured in MSUs (millions of service units) per
hour. The field is calculated as minimum of the following capacities:
For z/OS systems running as z/VM guests, the field displays the CPU capacity available to the z/VM partition. |
NUMBER OF CONFIGURED PARTITIONS | The total number of activated and deactivated configured partitions. This number does not include the partition reported by the name *PHYSICAL*. |
PHYS PROC NUM or
VM PROC NUM |
Number of physical processors in total and per processor type. Starting with IBM System z9
processors, IFLs and zAAPs are reported separately, and no longer as ICFs. If the data is reported for a z/OS system running as a z/VM guest, the field presents the number of processors that are assigned to the z/VM partition. |
WAIT COMPLETION | The wait completion option of the partition: YES, NO, or MIX
|
DISPATCH INTERVAL | Time (in milliseconds) a processor can be used when dispatched. This value is specified on
the Logical Partition Control (LPCTO) frame on the Processor Controller Element (PCE). DYNAMIC appears in this field if a value is not specified and implies that the length of time a processor is assigned to a partition is dynamically allocated. See PR/SM Planning Guide for more information. |
GROUP NAME | Name of the capacity group to which the partition belongs, if it is managed towards a common group capacity limit. |
LIMIT | Capacity limit (in MSUs) defined for the partition's capacity group. An '*' following the limit value indicates that this partition started to be a member of this capacity group less than four hours ago. This partition will have a different view of unused group capacity and, therefore, may cap differently than existing group members. |
AVAILABLE | Long-term average of CPU service in MSUs/h which would be allowed by the limit of the capacity group but is not used by its members. If the value is negative, the group is capped. |
INITIAL CAP | Indicates whether the operator has set ’Initial Capping ON’ in the logical partition controls of the Hardware Management Console (HMC) for the partition. |
LPAR HW CAP | Indicates whether an absolute physical hardware capping limit has been defined in the logical partition controls of the HMC for any processor type of the partition. |
HW GROUP CAP | Indicates whether an absolute hardware group capping limit has been defined in the logical partition group controls of the HMC for any processor type of the partition. |
ABS MSU CAP | Indicates whether the ABSMSUCAPPING parameter has been set in the active IEAOPTxx parmlib member for the partition. |
Partition Data | |
NAME | The name that identifies a partition D Note:
|
S | The current status of the partition:
If a partition is deactivated, the rest of the report line is blank. |
BT | The boost type that was active at some point within the interval.
|
WGT | Either the partition's current weighting of the shared processor resources or one of the
following indicators:
|
MSU | Shows capacity information for a partition in terms of MSUs per hour. This information is
shown for general purpose processors only.
|
CAPPING | Shows capping information for a partition.
|
Logical Partition Processor Data | |
PROCESSOR NUM TYPE |
The number of physical processors assigned to this partition and its processor type. |
EFFECTIVE DISPATCH TIME | The sum of all processors' effective dispatch times for this partition during the measurement interval; expressed in the form HH.MM.SS.TTT. Partition effective dispatch time is the time, excluding LPAR management time, that a processor was assigned to this partition during the measurement interval. |
TOTAL DISPATCH TIME | The sum of all processors' dispatch times for this partition during the measurement interval,
including LPAR management time. It is possible that the total dispatch time is smaller than the effective dispatch time. This situation occurs when partitions get "overruns" in their dispatch intervals caused by machine delays. The most typical form of this is caused by an MVS partition trying to talk to a coupling facility but getting significant delays or time-outs. It is sometimes symptomatic of recovery problems on the machine. For *PHYSICAL*, this value includes the time during which a physical CPU was busy, but the time could not be attributed to a specific logical partition. This time includes the time PR/SM was controlling the physical processor (LPAR management time), as well as any other time the processor was busy for any reason such as managing coupling facility traffic. |
Average Processor Utilization Percentages
The average utilization of logical processors is based on the total online time of all logical processors assigned to the partition. The average utilization of physical processors is based on the total interval time of all physical processors. Note: If the z/OS system is running as guest under z/VM, and the Monitor I data gatherer option
VMGUEST is active, the physical processor utilization represents the logical processor utilization
of the z/VM LPAR.
|
|
LOGICAL PROCESSORS - EFFECTIVE | The average partition effective dispatch time percentage.
|
LOGICAL PROCESSORS - TOTAL | The average partition total dispatch time percentage.
|
PHYSICAL PROCESSORS - LPAR MGMT | The average LPAR management time on behalf of the partition reported as a percentage of the
measurement interval.
If the total dispatch time is smaller than the effective dispatch time, The calculation for the *PHYSICAL* partition is:
Time *PHYSICAL* is the time that could not be attributed to a specific logical partition, but was used by PR/SM to control the physical processor (LPAR management time). Note:
# Physical Processors denotes the number of physical processors of a certain
processor group, either general purpose processors or special purpose processors. |
PHYSICAL PROCESSORS - EFFECTIVE | The effective utilization of the physical processor resource by the partition.
|
PHYSICAL PROCESSORS - TOTAL | The total utilization of the physical processor resource by the partition.
|
TOTAL |
The sum of the current weightings of the shared processor resources. The total amount of time the physical processor resource was assigned to a configured partition and to partition *PHYSICAL*. The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - LPAR MGMT field represents the total utilization of PR/SM physical processor resource by PR/SM. The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - EFFECTIVE field represents the total utilization of PR/SM physical processor resource by the operating systems running in each active partition. The sum of the AVERAGE PHYSICAL PROCESSOR UTILIZATION - TOTAL field represents the total utilization of the PR/SM physical processor resource by all configured partitions and by partition *PHYSICAL*. |