Wiki Article · Cinematic

Redundancy

Redundancy ka matlab hai kisi bhi critical component ka extra/duplicate rakhna taaki agar original…

Overview

Redundancy — Quick Facts

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Property: Detail

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Topic: Redundancy

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Type: Infrastructure / Reliability…

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Purpose: Failures survive karna — service…

Topic 1

Infobox

📚 | Property | Detail | |---|---| | Topic | Redundancy | | Type | Infrastructure /…

Topic 2

Why Redundancy Matters

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Revenue loss: E-commerce site 1…

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User trust: Ek baar service down…

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SLA penalties: Enterprise…

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Data loss: Bina redundant data…

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Types of Redundancy

🎯 1. Hardware Redundancy Extra physical components — dual power supplies, multiple disks…

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Redundancy Architecture Overview

⭐ `mermaid flowchart TD subgraph Users["🌐 Users"] U1["User Requests"] end subgraph DNS["🔗…

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Redundancy Patterns

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99.99%+ SLA: Active-Active ya N+N…

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99.9% SLA: Active-Passive ya N+1…

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Budget limited: Cold standby +…

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Data-critical: Replication (hot…

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Hardware Redundancy

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Dual Power Supplies (PSU): Server…

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Multiple NICs: 2+ network cards —…

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ECC RAM: Error-correcting memory —…

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Redundant Switches/Routers:…

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Data Redundancy

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Master-Replica (Master-Slave):…

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Multi-Master: Multiple nodes…

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Synchronous Replication: Replica…

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Asynchronous Replication: Write…

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Network Redundancy

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Dual ISPs: 2 internet service…

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Multiple Network Paths: Internal…

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BGP Failover: Border Gateway…

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Redundant Load Balancers: Load…

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Geographic Redundancy

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RTO (Recovery Time Objective):…

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RPO (Recovery Point Objective):…

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Hot Site: Always running, synced —…

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Warm Site: Infrastructure ready,…

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Single Point of Failure (SPOF)

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Single database server (no replica)

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Single load balancer (no HA pair)

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Single network link (no secondary…

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Single datacenter (no DR site)

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Cost of Redundancy

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Tiered redundancy: Critical path…

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Cloud elasticity: Standby…

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Shared-nothing architecture:…

Topic 12

Redundancy Anti-Patterns

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Dono "redundant" components same…

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Example: 2 servers same rack me,…

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Fix: Different failure domains…

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Redundancy setup hai lekin kabhi…

Topic 13

Glossary

🔑 | # | Term | Meaning | |---|---|---| | 1 | Redundancy | Critical components ka…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Redundancy ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Redundancy ka 'Topic' kya hai?

Complete! 🎉

Redundancy Complete!

Aliens Wiki · Hinglish · Cinematic Knowledge

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Redundancy Complete

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