Service Level Indicators (SLIs)
1. Definition
Service Level Indicators (SLIs) are metrics that measure the performance of a service in relation to its Service Level Objectives (SLOs). They provide insights into the quality and reliability of services offered to users.
2. Importance of SLIs
Understanding SLIs is crucial for:
- Evaluating service performance.
- Improving customer satisfaction.
- Facilitating informed decision-making.
- Guiding operational improvements.
3. Types of SLIs
Common types of SLIs include:
- Availability
- Latency
- Error Rate
- Throughput
4. Best Practices for Defining SLIs
To effectively define SLIs, consider the following:
Note: Ensure SLIs align with user expectations and business goals.
- Define SLIs that are relevant to user experience.
- Keep SLIs simple and measurable.
- Regularly review and adjust SLIs as necessary.
- Communicate SLIs clearly to all stakeholders.
5. FAQ
What is the difference between SLI, SLO, and SLA?
SLI is a measure of service performance, SLO is a target for SLIs, and SLA is a formal agreement on the level of service expected.
How often should SLIs be measured?
SLIs should be measured continuously to provide real-time insights into service performance.
Can SLIs be automated?
Yes, SLIs can be automated using monitoring tools that track performance metrics in real-time.