Answer: Latency, Availability

For data storage systems, **Latency** and **Availability** are key Service Level Indicators (SLIs) as they directly impact user experience and system reliability. These metrics are crucial for setting and achieving Service Level Objectives (SLOs). More details can be found [here](https://landing.google.com/sre/sre-book/chapters/service-level-objectives/).

Author: LeetQuiz Editorial Team