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The PMDB is the repository of the Precise for SAP suite, which stores application performance data for long-term analysis and trending reports. The data collected by the Precise product suite. For more information, see the the Precise Administration Guide or AdminPoint Online Help.

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The following figure illustrates the typical architecture of a Precise for SAP installation.

Figure 1- 1 Precise for SAP Architecture

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The following table describes the various Collectors.

Table 1- 1 Collectors

CollectorDescription
Workload

The Workload Collector is the most important Collector in Precise for SAP. It performs remote function calls to gather performance information about all SAP systems. The Workload Collector collects:

  • Step data. Contains information about running dialog steps. Data is not lost due to Collector downtime (limited to short periods of time, up to a number of hours at the most).
  • Batch data. Contains information about batch jobs within the SAP system. Data is not lost due to Collector downtime (limited to short periods of time, up to a number of hours at the most).
  • Host statistics data. Fetched from the SAP OS Collector using RFC. This information is collected using RFC calls that sample the current status. Historical data retrieval is therefore not possible.
  • Application server statistics data.This information is collected using RFC calls that sample the current status. Historical data retrieval is therefore not possible.
  • User list. A list of all defined users in the SAP system. This list is fetched once a day.
  • Transaction list. A list of all existing transaction codes in the SAP system. This list is fetched once a week.
  • Program list. A list of all existing ABAP programs in the SAP system. This list is fetched once a week.
  • RFC Data. Contains information on the execution of RFC functions within the SAP system. Data is not lost due to Collector downtime (limited to short periods of time, up to a number of hours at the most).
AvailabilityThe Availability Collector supplies the availability data of each and every application server in all monitored SAP systems. The Collector calls an RFC Ping method to check for application server availability. This data is then written to the cache files and aggregated in the FocalPoint before being loaded into the PMDB. The application server availability data is computed along with the locale availability data to produce overall system availability data.
LocaleThe Locale Collector supplies network information. When a locale is configured, destination machines are configured for that locale. The Locale Collector pings these destination machines using the TCP/IP method and returns information about the availability of these destinations. This data is then written into the cache files and aggregated by the FocalPoint before loading it into the PMDB. The aggregated data is used as the locale availability information for Precise for SAP. It is also computed together with the application server availability to produce overall system availability data.

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More information on Precise, its products, technical notes, and so on, can be found in the Release Notes document for this version.

 

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