☁️ Cloud Essentials: Crash Course Series
Master Servers, Virtualization, Cloud & Storage Fundamentals
📚 Fast-Track Your Understanding from Physical Servers to Cloud Infrastructure
🎯 What You'll Understand
Conceptual understanding of SPOF and fault tolerance theory
Why 20-30% utilization wastes money and how virtualization helps
Theoretical comparison: isolation vs speed trade-offs
Block vs File vs Object storage concepts explained
Map storage types to cloud services (EBS, EFS, S3)
Theoretical knowledge from servers to cloud (no hands-on)
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👇 Click any module below to explore detailed topics 👇
🖥️ Servers Crash Course
From SPOF to High Availability - Why We Need Servers
Functional (what) vs Non-Functional (how well)
Compute, Storage, Network - The Three Pillars
Why normal PCs fail: Any component = Total failure
Fault Domains + Fault Mechanisms (RAID, ECC RAM)
💎 Key Takeaways
- Understand why PCs can't run production applications
- Learn fault tolerance: Identify domain + Implement mechanism
- Calculate the real cost: 40 apps need 160 servers minimum!
📦 Virtualization Crash Course
Solving Isolation & Utilization - The Game Changer
1 Physical Resource → Multiple Virtual Resources
Isolation, Utilization, Portability, Cost, Scalability, HA
20% utilization → 70-85% utilization!
VMs win: Isolation/Security | Containers win: Speed/Performance
💎 Key Takeaways
- Boost utilization: From 20-30% waste to 70-85% efficiency
- Reduce costs: 160 physical servers → 20 physical servers!
- Foundation for cloud: Virtualization makes AWS/Azure/GCP possible
🏢 Datacenter & Cloud Computing
From Physical Infrastructure to Cloud Platforms
Physical infrastructure, power, cooling, networking
IaaS, PaaS, SaaS - Understanding service layers
Public, Private, Hybrid, Multi-cloud strategies
CapEx vs OpEx, TCO analysis, cost optimization
💾 Storage Fundamentals Crash Course
From Storage Equation to Cloud Storage Architecture
Source + Medium + Target
File-Level (NAS/CIFS/NFS) vs Block-Level (SAN/iSCSI/FC)
No file system! API-driven (GET/PUT/POST/DELETE)
Block→EBS | File→EFS/FSx | Object→S3
💎 Key Takeaways
- Master the storage equation: Change one component = change everything!
- Cloud mapping: Block=EBS, File=EFS/FSx, Object=S3
- Choose storage based on: Persistence, Performance, Cost trade-offs