November 2022
Intermediate to advanced
325 pages
8h 13m
English
Content preview from Modern System Administration
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Chapter 19. Developing On-Call Resilience
The most visible responsibility of supporting a service or system is on-call and managing impactful events. When your alerting system constantly pages you, you may not have the time or energy to improve the system’s infrastructure effectively. In extreme situations, you may avoid thinking about the on-call experience when you are not on-call because it feels better to accomplish project work. In this chapter, I propose a framework for building resilience, investing early and regularly to prepare for on-call so that you can cope with the challenges and stress that come from being available to handle any issues that arise.
What Is On-Call?
On-call is a temporary rotating role assignment that may include being reachable outside of normal business hours (e.g., evenings, weekends, and holidays) to answer requests for support and handle discovered alerts. When you are on-call, you are one of the people responsible for this work for a specific length of time. Depending on the size and distribution of the team, on-call rotations may consist of 8- to 24-hour shifts for one to two weeks.
On-call duties vary widely within different organizations, from failed application services to power outages. You may be the person to respond to services going offline or provide escalation support. You may have to investigate why a website went offline in the middle of the night or scramble to restore backups when a file server crashes. Some on-call is for the ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.