☁️ Well-Architected Framework

AWS 6 ta pillar, Cloud best practices va architectural principles

AWS Cloud Practitioner · CLF-C02 · ⏱️ 22 min · ❓ 6 savol

🏛️ AWS Well-Architected Framework — 6 Pillar

Operational Excellence — Operations as code, annotate documentation, frequent small changes
Security — Least privilege, encryption, incident response automation
Reliability — Auto recovery, horizontal scaling, stop guessing capacity
Performance Efficiency — Managed services, global in minutes, serverless
Cost Optimization — Pay for what you use, reserved capacity, right-sizing
Sustainability — Minimize environmental impact

📈 High Availability va Disaster Recovery

RPO (Recovery Point Objective) — qancha ma'lumot yo'qotilishi mumkin. RTO (Recovery Time Objective) — tiklash uchun ketadigan vaqt. DR Strategiyalar: Backup & Restore (eng arzon), Pilot Light, Warm Standby, Multi-Site Active/Active (eng qimmat, eng tez).

⚖️ Scalability

Vertical Scaling (Scale Up) — instance kattalashtirish (t2.micro → t2.xlarge). Horizontal Scaling (Scale Out) — instancelar sonini oshirish (Auto Scaling Group). Horizontal — preferred, chunki cheksiz scale qilish mumkin.

📊 Disaster Recovery Strategiyalar (narx va tezlik)

Strategiya	RTO	RPO	Narx	Izoh
Backup & Restore	Soatlar	Soatlar	💚 Eng arzon	S3 backup, kerak bo'lganda restore
Pilot Light	10-30 min	Minutlar	💛 Arzon	Core elementlar ishlaydi, boshqalar off
Warm Standby	~5 min	Soniyalar	🟠 O'rtacha	Scaled-down version doim ishlaydi
Multi-Site Active/Active	Soniyalar	0	🔴 Eng qimmat	Ikkala site to'liq traffic oladi

💡 Asosiy nuqtalar

6 Pillar: Operational Excellence, Security, Reliability, Performance, Cost, Sustainability
RTO — tiklash vaqti, RPO — yo'qotiladigan ma'lumot miqdori
Horizontal scaling > Vertical scaling (cheksiz)
Auto Scaling + ELB = HA va Scalability kombinatsiyasi
Design for failure — har qanday komponent ishlamay qolishi mumkin deb hisoblang

🎯 Imtihon maslahatlari

6 Pillarni eslab qolish uchun: "OSRPCS" — Ops, Security, Reliability, Performance, Cost, Sustainability
RPO < RTO yodda qiling: RPO = ma'lumot, RTO = vaqt. "Pillar Light" = eng oz narsani yoqib turish
"Design for failure" = Multi-AZ, health checks, auto-replace — Reliability pillari
Well-Architected Tool — bepul, konsolda mavjud, architecture review qiladi
Sustainability pillar — 2021 da 6-chi pillar sifatida qo'shildi

⚠️ Ko'p adashadigan

RPO va RTO ni almashtirish: RPO = qancha data yo'qolishi mumkin, RTO = qancha vaqt ichida tiklanish kerak
Vertical scaling "preferred" deb hisoblash — Xato! Horizontal preferred (elastik, cheksiz)
Pilot Light = Warm Standby deb o'ylash. Pilot Light — minimal (faqat core), Warm Standby — reduced-scale to'liq tizim

🧠 Eslab qolish: "OSRPCS" = "Operatsiya Sabr bilan Reallik Performans Cost Sustain" — 6 Pillar. DR: "BPWM" — Backup, Pilot, Warm, Multi (arzondan qimmatge)