Which cloud-operations term refers to the quantitative metric-such as request success rate or latency-that a team measures to understand service performance, without yet specifying any target threshold or contractual commitment?
A Service Level Indicator (SLI) is the raw quantitative measure of some aspect of a service's behavior, for example availability or latency. Teams collect SLIs to understand performance. A Service Level Objective (SLO) pairs an SLI with a target value (for example, 99.9 % success rate). A Service Level Agreement (SLA) is an externally facing contract that usually includes financial penalties when an SLO is missed. Mean Time To Recovery (MTTR) is an incident-response metric and is unrelated to the SLI/SLO/SLA hierarchy. Therefore, the SLI is the only term that matches the description of a pure measurement without a goal or guarantee.
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What are some examples of Service Level Indicators (SLIs)?
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How do Service Level Objectives (SLOs) relate to Service Level Indicators (SLIs)?
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What is the difference between Service Level Agreements (SLAs) and SLOs?
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What is the difference between SLIs and SLOs?
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What role does an SLA play compared to SLIs and SLOs?
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Why is MTTR unrelated to SLIs, SLOs, and SLAs?
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