Episode 17 — RAID basics for Linux+: what it protects, what it doesn’t, status thinking
RAID is tested on Linux+ because it’s a classic reliability topic that can be misunderstood in dangerous ways. This episode clarifies what RAID is for: combining disks to improve redundancy, availability, or performance depending on the level, and presenting that combination as a logical device the OS can use. You’ll learn the exam-critical distinction between protection against a disk failure versus protection against data loss, because RAID does not replace backups and it does not prevent deletion, corruption, or ransomware outcomes. The episode focuses on “status thinking,” meaning you can read a described state—degraded array, rebuilding, failed member—and infer the operational risk and appropriate next action.
we apply RAID status thinking to troubleshooting and real-world operations. You’ll practice interpreting symptoms like performance drops during rebuilds, noisy logs indicating failing members, and confusion between the logical RAID device and the underlying physical disks. We also cover best practices that align with exam intent: monitor for degraded states, replace failed components deliberately, and validate that the system still boots and mounts correctly after changes. Finally, we reinforce layered resilience: RAID can improve uptime, but you still need backups, integrity checks, and a plan for controller or configuration failures, because the exam often tests whether you can name what RAID does not protect. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.
