Mission Ready Software

Unfortunately software and hardware are often designed in “silos”.  Many of the system availability problems are due to their interface.   Site reliability (SRE) begins with an integrated view of the system and how it can become unavailable.  Site reliability depends on understanding of the small issues that lead to cascading failures.  The error budget isn’t accurate if the complex interactions between software and hardware aren’t considered. An individual software reboot might have negligible downtime. But if it happens repeatedly or on every system it can role into a massive site reliability issue.  This training class addresses these issues. 

Reliable Software 101

System Availability, Error Budgets, and System Modeling

In the first part of the training, you’ll learn to determine a feasible availability for a system. This involves understanding the target uptime and reliability for the service or product. You’ll then learn to determine error budgets, which are the allowable failure rates for a system’s components. This helps prevent minor issues from causing major outages. Finally, you’ll learn how to model the hardware and software as a combined system to ensure that their designs are in sync and that the error budgets are aligned.

SRE – Early System Availability Issue Detection and Inter-dependencies

The second part of the course focuses on practical application. You will learn how to find issues with software and hardware early during the system design where they originate, preventing last-minute, costly redesigns. You’ll also learn to identify when hardware changes inadvertently affect the software design and vice versa. A key focus is on understanding how software can cause hardware damage and how a software issue can cause a hardware failure to cascade to an even bigger failure, highlighting the critical inter-dependencies between the two.