KPI Overview

Key Performance Indicators (KPIs) can be accessed from the Status & Manage > KPIs page. KPIs represent point-in-time values monitoring various aspects of system performance. There are two types of KPIs, scalar and arrayed, that are used when the monitored element is either distinct or when the monitored element is repeated. For example, the overall CPU utilization for a system can be monitored as a scalar KPI, and the per core CPU utilization can be monitored as an arrayed KPI (where each array element represents the utilization for a CPU core.)

Two important filter concepts in this section are Scope and Group. These options can be selected from the KPI Filter drawer.

A scope is a collection of servers in a given topology. The scope presented in the first tab is referred to as the Entire Network scope. A sub-scope can be selected from the filter using one of the configurable containers:

• Network Element
• Server Group
• Resource Domain
• Place
• Place Associations

Note:

Scope is limited to only one selection. Multiple scope selections from the filter are prohibited.

Statistics are calculated across the selected scope. For example, when viewing CPU utilization with a selected scope of Entire-Network and a group of Non Arrayed, the CPU average statistic displayed is for all CPUs in the topology.

A group is a collection of KPIs. For example, Server, displays various system data related to a server. A group is named, and may consist of any mix of single (scalar) or arrayed KPIs. For presentation, groups are automatically partitioned into sub-groups where all of the scalar KPIs are grouped in the Non Arrayed sub-group, and each arrayed KPI is grouped into its own sub-group. Applications, topology, and features dictate what named groups are available to the user.

Smooth data presentation is a technique used to provide less erratic updates to the data. This process uses a form a data averaging as opposed to real time data and provides the user with a better overview of what resources are being used.

Exporting of KPIs uses the Automated Performance Data Export (APDE) framework. The export options can be accessed by opening the KPI APDE Export drawer. Export tasks can be monitored by opening the KPI APDE Tasks drawer. See Exporting KPIs for more information on the exporting of KPIs. See Files for more information on the APDE format.

Graphing options can be accessed by opening the KPI Graph drawer. See Graphing KPIs for more on the KPI graphing feature.