read book “Implementing SLO”

https://sre.google/sre-book/service-level-objectives/

https://cloud.google.com/blog/products/devops-sre/how-to-design-good-slos-according-to-google-sres

https://sre.google/workbook/implementing-slos/

reliability

https://cloud.google.com/architecture/framework/reliability/printable

https://sre.google/books/

https://sre.google/resources/book-update/

Availability

The calculus of service availability

https://cacm.acm.org/practice/the-calculus-of-service-availability/

“Thinking about Availability in Large Service Infrastructures” paper

google sre book

https://en.wikipedia.org/wiki/PACELC_design_principle