Demonstrating the Memory RAS Features of Lenovo ThinkSystem Servers

Reliability, availability and serviceability (RAS) is a computer hardware engineering term referring to the elimination of hardware failures to ensure maximum system uptime. The memory RAS features in Lenovo® ThinkSystem™ servers include Error Correcting Code (ECC), spare memory banks, page retirement and mirroring.

This document describes the memory RAS features in detail, explaining how to server availability is enhanced with the memory RAS features on Lenovo ThinkSystem servers running Linux.

Introduction
Memory RAS features
Demonstrating memory RAS features
Summary
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Related product families

Product families related to this document are the following:

• 2-Socket Rack Servers
• 4-Socket Rack Servers
• Blade Servers
• Memory