The SLA Reports
The SLA Reports display performance information for service level agreements (SLAs) defined in the SLM view.
- An SLA is an agreement between a client and a service provider that specifies the service to be provided, times, priorities, responsibilities, guarantees, and warranties.
- SLAs consist of one or more service level objectives (SLOs), which are specific measurable characteristics of the SLA such as availability, throughput, frequency, response time, or quality.
- SLOs are composed of one or more QoS objects that are combined to produce the SLO achievement value. For example, an availability SLO may depend on multiple components, each of which has a quality of service (QoS) availability measurement. QoS objects specify the source, target, threshold, and operating period settings for the QoS measurement.
SLA Reports display performance information for all three levels of the SLA.
View SLA Reports
The SLA Reports can be accessed from the top right of the SLM view in the Operator Console.
If you do not have the SLM View permission set in the Access Control List (ACL), you see a "Permission Denied" message when you try to open the SLA Reports.
When you open the SLA Reports, a selection dialog appears listing SLAs created in the SLM. Select an SLA from the window by typing the name of an SLA, and then click
If the selected SLA contains no QoS objects, a dialog appears to indicate an invalid SLA. The selection box disappears; to open it again, click on the
Open SLA( ) icon at the upper right of the window.
The SLA appears as a graph showing the compliance and non-compliance averages and a table of SLO and their individual compliance rates.
The Periods drop-down list lets you view the historical data for a specific time period. You can select the required duration from the drop-down list. The data in the UI then changes accordingly:
Icons next to the SLO names represent the state of compliance:
- SLO in compliance
- SLO compliance breached
Entries in the Achieved and Expected columns give more detailed information about the state of the SLO.
Icons at the upper right corner are:
- View historical data for the selected SLA in a separate window.
- Save the current window to a PDF file that can be saved and printed.
- Open an SLA.
View SLO Data
You can view information for SLOs that is similar to information for SLAs. Click on an SLO in the SLA table.
A table appears, listing the QoS objects, the source, and target of each and their rate of compliance. Icons reflect the compliance state of the SLOs. This data is displayed based on the duration that you select in the Periods drop-down list in the SLA Reports view.
View QoS Data
You can view charts for QoSs for SLOs. Click on a QoS name in the SLO table.
A graph appears, listing the QoS objects, the source, and target of each and their rate of compliance. An icon next to the QoS name reflects its compliance state. This data is displayed based on the duration that you select in the Periods drop-down list in the SLA Reports view.
Data is displayed for the time period for the QoS.
In the graph, any gray area without data represents the portion of the current period that has not yet been sampled. This data is automatically updated.
If there were no QoS objects assigned to the SLA or if the probe was unable to collect data, an Unavailability Report appears below the graph. The Unavailability Report lists the periods for the breach or lack of data. The State column indicates the cause for the unavailability:
- - breach
- unavailable service
To view other QoS charts, you can navigate back to the SLO view or to the SLA view through the named links at the upper left of the window.
View SLA History
The SLA History chart shows historical information about the SLA and provides an easy way to view the SLA report for different compliance periods.
- Click theHistory( ) icon.The SLA History chart is displayed. Compliance periods where the SLA objectives were met are shown as green columns, while compliance periods where SLA objectives were not met are shown as red columns. Hover over a column to see a pop-up window with the dates of the compliance period and the compliance percentage. The trend line for the data is shown in blue, and the compliance objective is shown as a red line. Click the Maximize icon to enlarge the SLA History chart.
- Click a column in the history chart to view the SLA report for that compliance period.
Generate a Report as a PDF
You can view an SLA Report as a PDF that can be printed or saved. You can set the PDF to include pages for all views of the report: the SLA, SLOs, and all QoS charts.
Follow these steps:
- Click theView as PDF()icon.
- Select the required option: SLA Report, SLO Report, or Full Report. The PDF is downloaded and is available for viewing.
The PDF version of an SLA Report contains links that you can use to navigate through the pages. These items are as follows:
- The SLA summary page contains a table listing the SLOs in the report. You can click on items in theObjectivecolumn to jump to a page containing details of an SLO.
- The pages displaying details of an SLO contain a table listing QoS objects. You can click on items in theObjectcolumn to jump to a page containing details of a QoS object.
- At the top of each page displaying details of an SLO or QoS object, the heading provides links that allow you to navigate back up to an SLO or to the SLA summary page.