IBM PERFORMANCE MANAGEMENT FOR POWER SYSTEMS - INTERACTIVE GRAPHING SUPPORT FOR ... User manual

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© 2010 IBM Corporation
Performance Management
Performance Management
for Power Systems:
for Power Systems:
Interactive Graphing Support for IBM i
Interactive Graphing Support for IBM i
http://www.ibm.com/systems/power/support/perfmgmt/

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Management
Management
Summary
Summary
Graphs
Graphs
The Management Summary Graphs are
available for servers/LPARs that are entitled at
the summary / No Additional Charge level.
Entitlement is earned when the system is under
hardware warranty or covered under an IBM
Hardware Maintenance Agreement
All entitled graphs are accessible by the end user customer via secure IBM Internet ID and password.
End users are provided a ‘registration’ key when the server or partition first transmits data.
Visit the PM Getting Started tour on the PM for Power Systems home page for more information.
http://www.ibm.com/systems/power/support/perfmgmt

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Management Summary Graphs
Management Summary Graphs
These graphs are available at no additional charge providing the system is under warranty or the system is
covered under an IBM Hardware Maintenance Agreement.
PM for Power Systems graphs are at the partition level, not at the total system level (unless there is no
partitioning on the system).
This graphic uses the colors to indicate the current status of the resource and the projected status for the next
12 months.
•Green bar – resource utilization is within good performance guidelines
•Yellow bar – resource utilization is marginal, you may be experiencing intermittent performance degradation
due to the resource
•Red bar – resource utilization is critical, the resource utilization is beyond the guidelines for good performance
and corrective action should be taken.
For more information on all graphs, visit the PM for Power Systems Graph Reference Document on the PM
home page at http://www.ibm.com/systems/power/support/perfmgmt

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Full Function
Full Function
Interactive
Interactive
Reports
Reports
The following reports are available for servers/LPARs
that are entitled at the Full Function level of PM for
Power Systems.
Contact IBM or and IBM Business Partner for terms
and conditions in your country.
The Full Function detailed reports available from PM for Power Systems are packaged differently by country.
Contact your local IBM Representative or an IBM Business Partner for more information.
PM for Power Systems graphs are at the partition level, not at the total system level (unless there is no
partitioning on the system).
Additional country contact information is available on the ‘contacts’ page at the main PM for Power Systems
home page
http://www.ibm.com/systems/power/support/perfmgmt
For more information on all graphs, visit the PM for Power Systems Graph Reference Document on the PM
home page at
http://www.ibm.com/systems/power/support/perfmgmt

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Interactive graphing
Detailed reports are available on most graphs with the full function
option of PM for Power Systems (and on the Management
Summary graph which is entitled with the no additional charge
offering).
You are able to view monthly, daily, and hourly level reports.
At the hourly level, you can customize a graph view down to a
single day.
The following graphs are examples of the reports that are
available. You will notice that in many cases the performance
guidelines are depicted on the graph.

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Guidelines for total processor utilization
These thresholds determine whether a resource is within guideline, marginal
or critical in the following processor utilization reports.
These are the processor utilization guidelines. They are based on the number of processors that are configured
for the server/LPAR.
These are the thresholds that trigger whether a constraint is normal, marginal or critical.

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Average Processor Utilization in % per Day
Average Processor Utilization in % per day
The Average Processor Utilization in % per Day graph shows the average processor utilization per measured
day during the period for three groups of priorities.
The symbols used on this graph are explained as follows:
• The forward slash (green) shows system usage (Jobtype = S).
• The cross-hatch (blue) shows interactive usage (Jobtype = I).
• The backward slash (red) shows the batch usage (Jobtype = B).
• The black line shows the average interactive work of the busiest single two hours during the shift for the
reported day, expressed as a percentage of total processor capability of the partition, (or total system if no
partitioning is used)..
•The left side of the graph shows the usage values in CPW and the right side shows the percentage.

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Processor Utilization by Hour
Processor Utilization by Hour
The Processor Utilization by Hour graph shows the hourly processor utilization average during the last 30-day
period. This allows you to see how the workload changes during a day.
• The time indication, 08 for example, represents the time range 08:00 through 08:59.
•The black line shows the busiest hour of interactive peak utilization for that hour during the last 30-day
period, expressed as a percentage of the total processor capability assigned to the partition. It is likely that
when this value is high, degraded response times were experienced during that hour on at least one day of the
period.
•The blue line shows the busiest hour of total peak processor utilization for that hour during the last 30-day
period. It is likely that your system experienced a degradation of throughput some day during the period, if this
percentage is high during a longer period.
•The red line shows the interactive limit that is defined in your system, set by the interactive feature installed,
the IBM i software Edition or set by the partition definition.

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Peak Processor Utilization, Total – with Trend Projections
Peak Processor Utilization, Total
The Peak Processor Utilization graph shows the average total peak processor utilization per month for the last
13 months and it also provides you with a growth trend. It also shows you how the workload changes during a
year.
The symbols used on this graph are explained as follows:
• The forward slash (green) in the bottom of the graph shows the processor utilization that is acceptable.
• The cross-hatch (yellow) in the middle of the graph shows the processor utilization that is marginal.
• The backward slash (red) at the top of the graph shows the processor utilization that is critical.
• The black diamond shows the average of the two busiest hours per shift during the month. Actually, the black
diamond shows the size of the workload on the partition in CPW values. On the trend months, the pink diamond
shows the projected peak processor utilization based on the three last months utilization. The blue square
shows the projected peak processor utilization based on the last six months utilization. The yellow star shows
the projected peak processor utilization based on the last 12 months of utilization.
PM for Power Systems will depict the IBM i workload growth over time in CPWs. The advantage of plotting
CPWs is that it is a normalized unit of work independent of the resources allocated to the server/LPAR. This
means that the black diamonds on the graph represent the workload trend independent of the resources
allocated to the server/LPAR.

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Peak Interactive Processor – with Trend Projections
Peak Interactive Processor – with Trend Projections
The Peak Interactive Processor – with Trend Projections graph shows the average processor utilization for
interactive jobs (Job type = I) during the last thirteen months. It also shows the corresponding CPW value used
for the two busiest hours for the shift during the period.
The right hand three columns project growth for the next three months based on the previous 3, 6 and 12
month growth history.
The information under the Facts heading at the bottom of the graph outlines the recommended guidelines for
marginal and critical percentage.

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Memory: Percent of Time Faulting, Per Day / Per Hour
Percent of Time Faulting, Per Day
The Percent of Time Faulting, Per Day graph shows the time spent faulting in a percent for each day for the last
three months, or the period you choose. The information under the Facts heading at the bottom of the graph
outlines the recommended guidelines for marginal and critical percentage.
Percent of Time Faulting, Per Hour
The Percent of Time Faulting, Per Hour graph shows time spent faulting in percent per hour for the last month,
or the period you choose.
• The average of the hours is indicated by the forward slash (blue) column.
• The hour with the heaviest paging (peak) is indicated as a line (black).
• The straight (red) line is the guideline.

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Peak Disk Arm Utilization in %, Utilization by Hour
Peak Disk Arm Utilization in %
This graph displays the average of the two peak hours for disk arm utilization, for each day during the last three
months, or the period you choose. The information under the Facts heading at the bottom of the graph states
the recommended guidelines for marginal and critical peak utilization and the months calculated to reach this
guideline with your percent usage.
Disk Arm Utilization by Hour
The Disk Arm Utilization by Hour graph shows the average disk arm utilization by hour per the last month, or
the month you select. The information under the Facts heading at the bottom of the graph states the
recommended guidelines for marginal and critical peak utilization.
Note for systems with SAN-based storage:
Each server/LPAR’s graph for disk arms will reflect utilization of the portion of the SAN which is accessed by
that server/LPAR. In rare cases, multiple servers using storage on the same SAN unit may result in a slight
increase in displayed disk arm utilization.

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Peak Disk Arm Utilization in % - with Trend Projections
Peak Disk Arm Utilization in % (3 Month Trend)
This graph shows the average peak disk arm utilization for up to 13 months, and a three-month trend projection
for the two busiest hours per measured day during the period. The trend projects the disk arm utilization for the
next three months based on the last 3, 6 and 12 months growth history. The trend months are the three last
months shown.
Because each displayed value is an average, the actual values during each month can be higher or lower than
what is indicated on the graph.
Note for systems with SAN-based storage:
Each server/LPAR’s graph for disk arms will reflect utilization of the portion of the SAN which is accessed by
that server/LPAR. In rare cases, multiple servers using storage on the same SAN unit may result in a slight
increase in displayed disk arm utilization.

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Disk Space Usage in %, per Day / Trend Projection
Disk Space Usage in % per Day
The Disk Space Usage in % per Day graph shows the disk space utilization for the last three months or the
period you choose.
Disk Space Usage in %, - with Trend Projections
The Disk Space Usage in % - with Trend Projections graph shows the average disk space utilization for up to
13 months and a three month trend projection for space utilization based on the last 3, 6 and 12 month history.
The facts section displays the recommended guidelines for marginal and critical peak percentage. It also
indicates the number of months before this system reaches the guideline, the change in the amount of the
stored data and the maximum usage of disk space in percent during the period.

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Communication Lines: Line Utilization
Line Utilization
The graph shows the average communication line utilization for the last three months for each communication
line while it is varied on during the collection period. Communication line errors show up in red.
Line utilization must be greater than one percent for the line to be shown in the graph.

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Transactions: Volume per Hour, Daily / 3 Month Trend
Transaction Volume per Hour
In this graph, the thin blue line illustrates the average transaction volume per hour for each day during the last
three months. The thick red line shows the average transaction volume for the hour that had the most
transactions per day during the last three months.
Transaction Volume per Hour – History and 3 Month Trend
This graph shows the average number of transactions per hour over a period of 13 months. The trend for the
next three months is calculated based on this data.
A ‘Transaction’ is any type of interaction that causes an interaction with the system. This includes the Enter
Key, Command Key, page up and page down.

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Transactions per Hour
Transactions per Hour
This graph shows the average number of transactions for all users per hour. You can chose up to 31 days
worth of data to display on this graph.
Under the Facts section, you see the average transaction characteristics for the current and previous two
months.
The characteristics are:
• CPU time in seconds
• Average number of I/Os
• Average number of synchronous I/Os

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Average Number of I/O per Transaction / Processor
Utilization for the Average Transaction per Hour
Average Number of I/Os per Transaction
This graph shows the average number of I/Os per transaction for all users per hour. Both the total number of
I/Os per transaction and the number of synchronous I/Os per transaction are shown.
Processor Utilization for the Average Transaction per Hour
This graph shows the amount of processor time used per transaction.

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Print outs - Daily Average per Hour
Print Outs - Daily Average per Hour
The graph shows the average number of pages per hour being submitted both interactively and in total.
The Top Ten reports show the top ten print jobs with the most pages and the top ten users printing the most
pages.
These reports all show the number of pages written to output queues. This might not be identical to the number
of pages printed to the printer. The difference in the number of pages can be attributed to the fact that output
queue jobs can be canceled, never printed, or printed multiple times.

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Number of Jobs per Measured Day
Number of Jobs per Measured Day
This graph shows the number of active jobs per measured day during the period.
• An interactive job starts when a user signs on to the system and ends when the user signs off.
• A batch job begins when the job becomes active from the job queue.