Introduction The Journaled File System (JFS), originally developed by IBM, is a robust, high‑performance file system that has been part of the Linux ecosystem for more than two decades. While many modern Linux distributions ship with ext4 or XFS by default, JFS still holds a unique niche thanks to its low CPU overhead, excellent scalability, and reliable journaling capabilities. In this article we will explore JFS from the ground up: ...
Introduction If you have ever glanced at the output of ls -i or wrestled with an “inode exhausted” error, you have already encountered the world of inodes. Inodes (index nodes) are the invisible data structures that give Unix‑like operating systems the ability to store, locate, and manage files efficiently. While the concept is decades old, it remains central to modern Linux, BSD, and even some network file systems. This article dives deep into the anatomy, purpose, and practical implications of inodes. By the end, you will understand: ...
Introduction XFS is a high‑performance, 64‑bit journaling file system originally developed by Silicon Graphics (SGI) for the IRIX operating system in the early 1990s. Since its open‑source release in 2001, XFS has become a core component of many Linux distributions, especially those targeting enterprise, high‑throughput, or large‑scale storage workloads. Its design goals—scalability, reliability, and efficient space management—make it a compelling choice for everything from database servers and virtualization hosts to big‑data clusters and high‑performance computing (HPC) environments. ...
Table of Contents What is Supabase? Setting Up Your First Supabase Project Database Fundamentals Authentication (Auth) Row Level Security (RLS) Realtime Subscriptions Storage (File Uploads) Edge Functions Building a Complete SaaS Application Production Best Practices Resources What is Supabase? Supabase is an open-source Firebase alternative built on PostgreSQL. Think of it as your entire backend in a box: PostgreSQL Database: A real, powerful SQL database (not a limited NoSQL solution) Authentication: Email, OAuth, magic links - all handled for you Realtime: Live data updates without writing WebSocket code Storage: File uploads with CDN delivery Edge Functions: Serverless backend logic Auto-generated APIs: REST and GraphQL APIs created automatically from your database Why Supabase for SaaS? ...