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Incident Response Mastery: Overview & Study Path

A complete SRE and Linux debugging knowledge base, organized by depth: mindset → practice → structured learning → reference.

📋 Quick reference: Incident Response → Beginner
Learn this in 5 minutes5 min
  1. Read the document list below and pick your entry point
  2. Follow the Suggested Reading Order rather than jumping around
  3. Keep the Core Principle in mind while reading every other page
🧭 Mental modelHow this series is organized, by depthThe series fans out from one overview into four tracks: process and organization, mindset and practice, structured learning, and reference deep-dives.Incident Response Masterymindset → practice → referenceProcess & Orgseverity, roles,on-call, postmortemsMindset & PracticeUSE method,10 simulationsStructured Learning90-dayroadmapReference (5 docs)Linux, kernel, /proc,filesystem, interview

This series is organized by depth, not just topic: one overview fans out into org-level process, individual mindset and hands-on practice, a structured 90-day learning path, and a set of five reference deep-dives to look things up in later.

Documents​

Process & Organization
└── Incident Management Setup .......... Severity classification, IC/Comms/Scribe roles, on-call/paging, postmortems, runbooks

Mindset & Practice
├── Incident Response Mindset ......... The internal thought process senior SREs run under pressure
└── Incident Simulation Labs .......... 10 timed incidents + hands-on labs to practice it

Structured Learning
└── 90-Day Linux/SRE Roadmap .......... 12-week phased path from Linux basics to production mastery

Reference (Deep Dives)
├── Linux Debugging Reference ......... Master outline: systemd, networking, containers, security, boot
├── Process Management & /proc ........ Process lifecycle, ps/top/kill, /proc filesystem, decision tree
├── Filesystem & Storage Playbook ...... FHS, inodes, LVM, RAID, permissions, storage incident playbook
├── DevOps/SRE Interview Scenarios ..... Interview-style Q&A: AWS+Linux, Kubernetes, DB, incident patterns
└── Linux Kernel Fundamentals .......... Kernel internals: scheduling, syscalls, interrupts, modules

Suggested Reading Order​

If you want to...Start with
Set up org-level incident process (severity, roles, on-call, postmortems)Incident Management Setup
Learn how to think during an incidentIncident Response Mindset
Practice on realistic failuresIncident Simulation Labs
Build skills systematically over 90 days90-Day Linux/SRE Roadmap
Look up a specific subsystem quicklyLinux Debugging Reference
Debug a hung/slow process right nowProcess Management & /proc
Debug a disk-full or storage incident right nowFilesystem & Storage Playbook
Prep for an SRE/DevOps interviewDevOps/SRE Interview Scenarios
Understand why Linux behaves the way it doesLinux Kernel Fundamentals

Core Principle (Applies to Every Document)​

First understand. Then act. Mitigate before root-causing when impact is high. Never guess — form a falsifiable hypothesis and test it against evidence.

See Incident Response Mindset for the full framework.