Server Operations
I/O Behavior, Capacity Signals, and Honest Forecasting
Read iostat without panic, correlate block device noise, and write forecasts that survive leadership questions.
- Duration
- 4 weeks · 28 lab hours
- Format
- Async with two mentor reviews
- Skill level
- Intermediate
- Certification path
- Cloud cost ops adjacent skills
- Informational price
- ₩199,000
What the labs include
- iostat, pidstat, and blktrace triage ladders
- Filesystem choice tradeoffs without vendor kool-aid
- Cloud cost ops vocabulary tied to Linux metrics (no billing integration)
- Forecast spreadsheet templates with confidence bands
- Scenario planning when chip shortages stretch lead times
- RAID rebuild impact exercises on lab arrays
- Executive summary workshop with tight word limits
Outcomes you can show a lead
- Produce a two-page capacity brief with explicit assumptions
- Differentiate latency spikes from saturation with evidence
- State what data would change your recommendation
Responsible instructor
Haneul Park
Academic Director focused on lab integrity and mentor calibration.
FAQ
We cover vocabulary and signals, but we do not integrate billing APIs or consoles.
Learner notes
Vendor slide mismatch scenario felt rude and realistic—good prep for awkward meetings.