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coolvds.com › Blog › Performance Optimization

The "Cloud" Lie: Why Shared Storage Kills Performance (And How to Fix It)

· CoolVDS Team

Is your "scalable" cloud instance stalling on database queries? In 2011, the bottleneck isn't CPU—it's Disk I/O. We analyze the latency crisis in virtualized storage and why local SSD RAID is the only viable path for high-performance hosting in Norway.

coolvds.com › Blog › Server Administration

Stop Wasting RAM: Migrating from Apache mod_php to PHP-FPM & Nginx

· CoolVDS Team

Is your server swapping under load? We dive deep into the architecture of PHP-FPM, available natively in PHP 5.3.3+, and show you how to configure Nginx on CentOS 6 to handle thousands of concurrent connections without melting your hardware.

coolvds.com › Blog › Database Management

PostgreSQL 9.0 vs MySQL 5.5: The Battle for Your Data in 2011

· CoolVDS Team

Oracle has bought Sun, PostgreSQL finally has Hot Standby, and SSDs are changing the I/O game. We benchmark the two giants of open source databases for the Norwegian hosting market.

coolvds.com › Blog › DevOps & Infrastructure

Cloud Storage in 2011: Why Latency and Shared SANs Are Killing Your Web App

· CoolVDS Team

It is 2011, and the 'Cloud' buzzword is everywhere. But for systems architects, the reality is often high I/O wait and unpredictable performance. We explore why local RAID 10 storage beats centralized SANs and how to tune your Linux stack for speed.

coolvds.com › Blog › Server Administration

Postfix on CentOS 5: Building a Bulletproof Mail Server in Norway

· CoolVDS Team

Running your own mail server isn't just about sending emails; it's about control, privacy, and deliverability. Learn how to configure Postfix 2.8 correctly to avoid blacklists and ensure strict data compliance under Norwegian law.

coolvds.com › Blog › Server Administration

VPS vs Shared Hosting: Why Your "Unlimited" Plan is Killing Your Business

· CoolVDS Team

Is your site crawling during peak traffic? We dissect the technical reality of Shared Hosting overselling versus the dedicated isolation of a VPS. Learn why I/O wait times and kernel resource limits matter more than marketing fluff.

coolvds.com › Blog › Hosting Solutions

Escaping the Shared Hosting Trap: Why Your Growing App Needs a VPS

· CoolVDS Team

Is your site buckling under the 'Digg Effect'? We analyze the architectural bottlenecks of shared hosting and demonstrate why migrating to a Xen-based VPS is the only viable path for performance and compliance in 2010.

coolvds.com › Blog › Hosting Solutions

VPS vs Shared Hosting: Why Your Business Outgrew its $5 Plan

· CoolVDS Team

Is your site sluggish during peak hours? We analyze the technical limitations of shared hosting environments and why migrating to a Xen-based VPS in Norway is the only path for stability in 2010.

coolvds.com › Blog › DevOps & Infrastructure

The I/O Bottleneck: Why Your "Cloud" Database is Crawling (And How to Fix It)

· CoolVDS Team

It is 2010, and virtualization is taking over, but shared storage is killing your database performance. We analyze the latency hidden in SANs, the rise of SSDs in enterprise hosting, and why keeping your data in Norway matters for compliance and speed.

coolvds.com › Blog › Hosting Solutions

VPS vs Shared Hosting: The Architecture of Reliability in 2010

· CoolVDS Team

Is your shared host throttling your growth? We analyze the technical chasm between shared environments and Virtual Private Servers, focusing on kernel isolation, I/O contention, and the Norwegian Personal Data Act.

coolvds.com › Blog › Server Administration

Why KVM is Killing Xen and OpenVZ: A Sysadmin’s Guide to Real Virtualization

· CoolVDS Team

Tired of 'burst RAM' limits and oversold OpenVZ containers? We dive deep into the Kernel-based Virtual Machine (KVM) architecture, benchmarking I/O performance on Linux 2.6, and why strict resource isolation is the only way to survive a Slashdotting in 2009.

coolvds.com › Blog › Server Administration

Xen Virtualization: The Definitive Guide for High-Performance Hosting

· CoolVDS Team

Stop gambling with oversold resources. We analyze the Xen hypervisor architecture (Dom0 vs DomU), Paravirtualization performance, and why serious Systems Administrators in Norway are ditching containers for true hardware isolation.