I‘m Klaus Aschenbrenner, a Microsoft Certified Master for SQL Server
» I help people to bring their SQL Server
installations to a new level of excellence. «
SQLpassion Offerings
SQLpassion helps businesses get the most out of SQL Server – from smooth setups to better performance and long-term stability. As a Microsoft Certified Master, I offer tailored consulting, hands-on workshops, and share my expertise at international events – all with a clear focus on delivering real results.
You have seen my Blog Postings?
Maximizing 40G NIC Performance on Linux with Intel XL710 and Cisco Nexus Switches
In this comprehensive technical walkthrough, I’ll take you through a real-world journey of troubleshooting and tuning a high-performance 40 Gbit Ethernet setup using Intel XL710 network cards connected through a Cisco Nexus 3064 switch. The goal was simple but challenging: to achieve near line-rate performance using iperf3 between two Linux (Proxmox) systems. When I first started testing
From SQL Server to PostgreSQL: A Story of 5 Key SQL Differences
After spending decades working in SQL Server, getting familiar with PostgreSQL felt like traveling to a country where everyone speaks a language I mostly understand – but with a different accent and some unfamiliar slang. At first glance, SQL is SQL. But once I started writing real queries in PostgreSQL, I realized that my habits from T-SQL
Why I Created the SQL Rescue Sprint – And How It Works
Over the past 25 years, I’ve worked with SQL Server in all kinds of environments: startups, mid-size companies, and global enterprises. And no matter the industry or infrastructure, one thing is always true: When SQL Server slows down, everything slows down! Reports take forever. Blocking brings processes to a halt. Deadlocks frustrate both users and
