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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 →
🧭 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.