When High Availability Lies: The Azure Always On Listener That Worked — Until It Didn’t
Introduction — The Illusion of Resilience SQL Server Always On Availability Groups is widely regarded…
SQL Server
Career
When Certifications Become a Crutch: How the Tech Industry Confuses Badges with Real Competence
The modern technology industry prides itself on rationality, metrics, and evidence-based decisions. Yet, paradoxically, one…
Oracle
Turn Your Oracle Into a Superhero: RAC & Data Guard Unleashed!
The high availability of Oracle databases is primarily supported by two robust and widely used…
Postgres
Patroni, Keepalived, and HAProxy — When and Why Should You Use Each?
https://www.youtube.com/watch?v=pc-IXST3utU One of the most common questions that arises when designing a PostgreSQL high-availability cluster…
Postgres
🧠 Cluster Postgres com Patroni, Keepalived e HAProxy — Quando e Por Que Usar Cada Um?
Uma dúvida clássica que surge com frequência ao projetar um cluster PostgreSQL com high availability…
SQL Server
Por que todo DBA de SQL Server precisa dominar Log Shipping e Cluster com Always On para Disaster Recovery?
Quando falamos em Disaster Recovery (DR) no SQL Server, muita gente pensa imediatamente em Always…
SQL Server
A Importância REAL de Configurar Cluster e Always On no SQL Server (Alta Disponibilidade sem Ilusão)
Se tem uma coisa que aprendi ao longo dos anos trabalhando com SQL Server em…