usamaaijaz.hashnode.devOpenEdX on AWS EKS - Complete Production Deployment GuideAl Nafi Assessment | Battle-Tested | Zero-Debugging Status: Production-Ready ✅Platform: AWS EKS (Kubernetes 1.34)OpenEdX: Tutor 21.0.1 (Latest)Domain: Your-domain.com (replace throughout)Deployment Time: 4-7 hours (with debugging)Monthly Cost: ~$270 ...Feb 17·57 min read
usamaaijaz.hashnode.devThe Complete Linux EXT4 Disk Quota GuideFrom Absolute Beginner to Production Expert (RHEL 8/9/10) Last Updated: November 2025Target Systems: RHEL 8, 9, 10 with EXT4 filesystemKnowledge Level: Beginner to Advanced Table of Contents What is Disk Quota? (The Simple Story) Understanding Quo...Nov 4, 2025·34 min read
usamaaijaz.hashnode.devRAID-10: Production-Grade Setup Guide⚠️ CRITICAL WARNING THIS TUTORIAL DESTROYS DATA ON SPECIFIED DISKS Use virtual disks or dedicated physical disks only Never use system disks Verify with lsblk before every command Test in VM first lsblk -o NAME,SIZE,TYPE,MOUNTPOINT 💡 Underst...Oct 29, 2025·38 min read
usamaaijaz.hashnode.dev🛡️🛡️ RAID-6 Double Protection: Complete Hands-On GuideLearn RAID-6 setup, dual-failure recovery, and enterprise-grade management — explained like you're talking to a friend 🎯 What You'll Master Today By the end of this guide, you'll be able to: ✅ Understand RAID-6 deeply (the upgrade from RAID-5) ✅ ...Oct 22, 2025·27 min read
usamaaijaz.hashnode.dev🛡️ RAID-5 From Zero to Pro: Complete Hands-On GuideLearn RAID-5 setup, failure recovery, and real-world management — explained like you're talking to a friend 🎯 What You'll Master Today By the end of this guide, you'll be able to: ✅ Understand RAID-5 deeply (not just commands) ✅ Build a productio...Oct 21, 2025·21 min read
