The document outlines the SRE (Site Reliability Engineering) engagement model, focusing on the Product Readiness Review (PRR) process throughout the service lifecycle. It emphasizes the importance of verifying service readiness, improving production reliability, and minimizing incidents while detailing the roles of SRE in managing services. Various aspects of production such as system architecture, metrics, monitoring, and change management are highlighted as critical to the PRR objectives.

1. SRE Demystified
Engagement Model
ganesh@ganeshniyer.com
ganesh.vigneswara@gmail.com,
http://ganeshniyer.com
Dr Ganesh Neelakanta Iyer

2. SRE
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3. Engagement Model
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4. PRR - Product Readiness Review
• PRR can be started at any point of the
service lifecycle
• SRE seeks production responsibility for
important services for which it can make
concrete contributions to reliability
• SRE is concerned with several aspects
of a service, which are collectively
referred to as production
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5. PRR - Product Readiness Review
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System
architecture and
interservice
dependencies
Instrumentation,
metrics, and
monitoring
Emergency
response
Capacity planning
Change
management
Performance:
availability, latency,
and efficiency

6. PRR
• The objectives of the PRR are as follows:
• Verify that a service meets accepted standards of
production setup and operational readiness, and that
service owners are prepared to work with SRE and
take advantage of SRE expertise.
• Improve the reliability of the service in production, and
minimize the number and severity of incidents that
might be expected. A PRR targets all aspects of
production that SRE cares about
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7. PRR - Typical Steps
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8. Evolving the Simple PRR Model:
Early Engagement Model
• The service implements significant new functionality and
will be part of an existing system already managed by
SRE
• The service is a significant rewrite or alternative to an
existing system, targeting the same use cases
• The development team sought SRE advice or
approached SRE for takeover upon launch
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9. The Service life cycle and role of SRE
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10. References
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11. Dr Ganesh Neelakanta Iyer
ganesh@ganeshniyer.com
ganesh.vigneswara@gmail.com