CPC LPAR details history attributes
This attribute group provides historical information about CPU usage for the highest CPU consumer in a sysplex or CPC. This group also provides partition management statistics for the LPAR identified in the data row.
Absolute_Capacity\Limit(RMF metric) Absolute physical hardware capacity limit of the LPAR; this is the number of physical CPUs an LPAR is limited to, in hundredths of a CPU. Set by the operator in the logical partition controls on the Hardware Management Console. 'Unavailable' is seen when the rmf does not return a value for this attribute.
Actual MSUs Consumed (RMF metric) Actual Millions of unweighted CPU service units per hour consumption. These values are only provided for general purpose processors.
Average Logical CPs (RMF metric) The number of logical processors which were online during the report interval.
Capping/Option(RMF metric) The capping
option of the partition (Yes, No, Mixed or Unavailable). This
attribute indicates whether the operator has set Initial Capping
ON
or an absolute physical hardware capacity limit in numbers
of CPUs in the logical partition controls for the partition. Mixed
is set by RMF, if either a non-IBM processor belongs to this partition
which is not managed by the logical partition controls or if the capping
status is currently changing.
CPC Serial Number (RMF metric) Machine serial number (last six hexadecimal digits).
Current Weight (RMF metric) Current LPAR Weight (partition).
The current weighting of the shared processor resources for the partition.
This metric is available for general purpose processors (CP) as well as for special purpose processors (for example, ICF). With LPAR weight management, you give each logical partition an initial LPAR weight, along with an optional minimum and maximum weight if desired.
Workload Manager (WLM) then dynamically balances these weights to best meet the goals of the work in the partitions, with no human intervention. Note that the total weight of the cluster as a whole will remain constant, so LPARs outside the cluster are unaffected.
Defined Capacity (RMF metric) Indication of whether LPAR has defined capacity, Yes or No.
Defined MSU Capacity (RMF metric) Defined Capacity of the LPAR in millions of unweighted CPU service units per hour (MSU/Hr). If no defined capacity is specified this is the Entitled Capacity. These values are only provided for general purpose processors.
Effective Logical CP Percent (RMF metric) LPAR effective logical CP percentage.
This data is based on the total online time of all logical processors and does not include LPAR management time.
This metric is available for partitions running general purpose processors (CP) as well as for partitions running special purpose processors (for example, ICF).
Effective Physical CP Percent (RMF metric) LPAR effective physical CP percentage. The effective utilization of the physical processor resource by the partition.
(Effective Dispatch Time / # Physical Processors * Range Time) * 100
High Share LPs (RMF metric) Number of High Hiperdispatch Logical Processors. If HiperDispatch is enabled, the number of logical processors of the LPAR with a high entitlement (100% share) of a physical processor.
Initial Capping/Option(RMF metric) The Initial Capping option of the partition (Yes, No, Mixed or Unavailable). This field indicates whether the operator has set 'Initial Capping ON' in the logical partition controls for the partition. Mixed is set by RMF, if either a non-IBM processor belongs to this partition which is not managed by the logical partition controls or if the Initial Capping status is currently changing.
Initial Weight (RMF metric) Initial LPAR Weight. Values 1-65534 or "Dedicated".
Defined initial weighting of the shared processor resources.
With LPAR weight management, you give each logical partition an initial LPAR weight, along with an optional minimum and maximum weight if desired.
Workload Manager (WLM) then dynamically balances these weights to best meet the goals of the work in the partitions, with no human intervention. Note that the total weight of the cluster as a whole will remain constant, so LPARs outside the cluster are unaffected.
LPAR Capping Percentage (RMF metric) Percentage of time when WLM capped the partition because the four-hours average MSU value exceeds the defined capacity limit.
LPAR Cluster Name (RMF metric) Name of the LPAR Cluster this LPAR belongs to. All partitions that have the same cluster name are grouped together.
LPAR Configured Storage MB (RMF metric) Central storage currently online to this LPAR in Megabytes.
- C - General purpose CPU (CP)
- A - Application Assist Processor (zAAP)
- U - Integrated Information Processor (zIIP)
- F - Integrated Coupling Facility (ICF)
- L - Integrated Facility for Linux (IFL)
- I - CPUs known as ICF/IFL/zAAP on processors before z9
LPAR 4 Hour Rolling Average (RMF metric) Average value of consumed MSU/h during the last four hours. Measured in millions of unweighted CPU service units per hour (MSU/h).
LPAR Group Active 4 Hours (RMF metric) An indication of whether the LPAR Group has been active for 4 hours or more (Yes or No)
LPAR Group Average Unused MSUs (RMF metric) LPAR Group Average 4 hour unused MSUs/Hour.
LPAR Group Capacity Limit (RMF metric) LPAR Group Capacity MSU Limit. Capacity limit (in MSUs) defined for the partition's capacity group.
LPAR Group Minimum Entitlement (RMF metric) Minimum entitled MSU/Hr of the LPAR Capacity Group this LPAR belongs to. The guaranteed MSU share this partition gets if necessary (even if all other partitions within the capacity group are running high workload).
LPAR Group Maximum Entitlement (RMF metric) Maximum entitled MSU/Hr of the LPAR Capacity Group this LPAR belongs to. The maximum MSU share a partition can get if all other partitions in the capacity group are running without workload.
LPAR Group Name (RMF metric) Name of the partition's capacity group. If the partition does not belong to a capacity group, a blank is displayed.
LPAR Group Time Until Capping (RMF metric) The projected time until this LPAR's LPAR Group will be subject to capping.
- Partitions identified by the name PHYSICAL are not configured partitions. Data reported in these lines includes the time during which a physical CPU was busy, but the time could not be attributed to a specific logical partition.
- Starting with z9 processors, IFLs (Integrated Facility for Linux) and zAAPs are reported separately and no longer as ICFs (Internal Coupling Facility).
LPAR Time Until Capping (RMF metric) The projected time until this LPAR will be subject to capping.
Low Share LPs (RMF metric) Number of Low Hiperdispatch Logical Processors.If HiperDispatch is enabled, the number of logical processors of the LPAR with a low entitlement (0% share or very close to it) of a physical processor.
LP %Share of Physical (RMF metric) Percentage share of each Hiperdispatch Medium Logical Processor. The percentage of the physical processor that a logical processor of the LPAR is entitled to use.
If HiperDispatch is enabled, this is the percentage of logical processors with medium entitlement of a physical processor.
Without HiperDispatch, all logical processors have the same share because the LPAR weight is evenly distributed.
Blue highlighting of data values indicates that the LPAR is in HiperDispatch mode.
Managed System A z/OS operating system in your enterprise that is being monitored by an IBM Z OMEGAMON Monitor for z/OS agent. Valid value is a character string with a maximum length of 32 bytes.
Maximum 4 Hour Rolling Average (RMF metric) Maximum value of consumed MSUs during the last 4 hours (retrieved from 48 sample intervals of five minutes). This value can be greater than the defined capacity.
Maximum Weight (RMF metric) Maximum LPAR Weight. Values 1-65534 or "Dedicated".
Maximum weighting of the shared processor resources.
A value of zero indicates that the partition is under control of LPAR CPU management, but no maximum has been specified. With LPAR weight management, you give each logical partition an initial LPAR weight, along with an optional minimum and maximum weight if desired.
Workload Manager (WLM) then dynamically balances these weights to best meet the goals of the work in the partitions, with no human intervention. Note that the total weight of the cluster as a whole will remain constant, so LPARs outside the cluster are unaffected.
Minimum Weight (RMF metric) Minimum LPAR Weight. Values 1-65534 or "Dedicated".
Minimum weighting of the shared processor resources.
A value of zero indicates that the partition is under control of LPAR CPU management, but no minimum has been specified. With LPAR weight management, you give each logical partition an initial LPAR weight, along with an optional minimum and maximum weight if desired.
Workload Manager (WLM) then dynamically balances these weights to best meet the goals of the work in the partitions, with no human intervention. Note that the total weight of the cluster as a whole will remain constant, so LPARs outside the cluster are unaffected.
Medium Share LPs (RMF metric) Number of Medium Hiperdispatch Logical Processors. If HiperDispatch is enabled, the number of logical processors of the LPAR with a medium entitlement of a physical processor.
For the percentage, refer to the Logical Processor Share value.
Physical CP Overhead Percent (RMF metric) LPAR physical overhead percentage.
The average LPAR management time percentage.
((Total Dispatch Time - Effective Dispatch Time)/(# Physical Processors * Range Time)) * 100
The calculation for the PHYSICAL partition is:
(Time PHYSICAL /(# Physical Processors * Range Time)) * 100
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).
Recording End Time Time at the end of the RMF reporting interval for the current row of near-term historical data. The valid format is yy/mm/dd hh:mm:ss.
Recording Start Time Time at the start of the RMF reporting interval for the current row of near-term historical data. The valid format is yy/mm/dd hh:mm:ss.
RMF Status Status indications for availability of RMF and lock data.
Sample Period Sample period in seconds.
Total Logical CP Percent (RMF metric) LPAR total logical CP percentage (partition).
The total utilization of the logical processors by the partition.
This data is based on the total online time of all logical processors and includes LPAR management time.
This metric is available for partitions running general purpose processors (CP) as well as for partitions running special purpose processors (for example, ICF).
Total Physical CP Percent (RMF metric) LPAR total physical CP percentage.
The total utilization of the physical processor resource by the partition.
(Total Dispatch Time /# Physical Processors * Range Time) * 100
The Total Dispatch Time for the PHYSICAL partition 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.