ITIC 2025 Global Server Hardware Reliability Report

This document is a report detailing the findings of the ITIC 2025 Global Server Hardware and Server OS Reliability Survey. The survey, which polled nearly two thousand organizations worldwide, evaluates server reliability, uptime, and security across various platforms. The report highlights that IBM Z and IBM Power have maintained their dominance in server reliability for the 17th consecutive year, achieving remarkable uptime statistics. Lenovo's ThinkSystem servers have also shown significant improvements, tying with IBM Power Systems for uptime and reliability. The report further discusses the impact of security, human error, and AI project complexities on server downtime, with a majority of respondents identifying security as the leading cause of unplanned outages. Additionally, it presents detailed statistics on downtime costs associated with different server platforms, emphasizing the economic advantages of high-reliability systems. The report concludes with recommendations for enterprises to prioritize reliability and security in their server deployments.