Week 03 · overview

Week 3: Storage, SATA, NVMe, SAS, M.2, and RAID

210 instructional minutes | five 42-minute lessons

This week compares storage by workload, interface, form factor, performance, durability, redundancy, and failure evidence rather than capacity alone.

Lesson sequence

  1. Storage Is More Than Capacity
  2. SATA, NVMe, SAS, M.2, and mSATA
  3. RAID Is Not Backup
  4. Storage Selection Lab
  5. Diagnose the Missing or Failing Drive

Evidence you will produce

  • storage technology/workload comparison;
  • interface and protocol map;
  • RAID decision with backup distinction;
  • storage-selection rationale;
  • failure ticket using firmware, controller, OS, filesystem, SMART, and symptom evidence.

A+ alignment

Primary coverage: Core 1 objectives 3.4 and 5.2.

Safety boundary

Preserve data before destructive changes. Do not initialize, format, rebuild, or replace storage until the evidence and recovery requirement justify the action.