Graph history concepts

 

Contains a description of the available options for managing and displaying records of performance data.

Graph history displays data contained in the collection objects created by Collection Services. Therefore, the type and amount of data available is dependent on your Collection Services configuration.

The amount of data that is available to be graphed is determined by the settings that you selected from the Collection Services properties, specifically the collection retention period. Use iSeries™ Navigator to activate PM iSeries over multiple systems. When you activate PM iSeries, you can use the graph history function to see data that was collected days ago, weeks ago, or months ago. You go beyond the realtime monitor capabilities, and have access to summary or detailed data. Without PM iSeries enabled, the graph data field supports 1 to 7 days. With PM iSeries enabled, you define how long your management collection objects remain on the system:

• Detailed data (attribute type *PFR in QMPGDATA.LIB or QPFRDATA.LIB)

  The length of time that management collection objects remain in the file system before they are deleted. You can select a specific time period in hours or days, or you can select Permanent. If you select Permanent, the management collection objects will not be automatically deleted.

• Graph data (attribute type *PFRDTL in QMGTC2.LIB)

  The length of time that the details and properties data that is shown in the Graph History window remains in the system before it is deleted. If you do not start PM iSeries, you can specify one to seven days. If you do start PM iSeries, you can specify 1 to 30 days. The default is one hour.

• Summary data (attribute type *PFRHST in QMGTC2.LIB)

  The length of time that the data collection points of a graph can be displayed in the Graph History window or remain in the system before they are deleted. No details or properties data is available. You must start PM iSeries to enable the summary data fields. The default is one month. The summary data is summarized in one-hour intervals and does not support second- and third-level details.

• Graph history status

  The Graph History window now displays the graph history status. You also can re-create the graph history data if it is missing.

 

Parent topic:

Viewing monitor results