Reliability, Availability, Serviceability

Reliability, Availability, Serviceability

(system, design, hardware, software)
(RAS) Three key attributes of a computing system design. See reliability, availability, and serviceability.

The term "RAS" is fairly common in the computing industry (particularly computers and storage) as computing becomes more fundamental. For example, a vehicle may depend on dozens of computers, and the consequences of the failure can be significant (e.g., an ambulance's engine won't start).
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
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The server sets a new standard in mission critical computing by combining an innovative and open design with breakthrough Reliability, Availability, Serviceability (RAS 2.0) and CPU interconnection technologies.
They contain mainframe-class RAS (Reliability, Availability, Serviceability) features such as hot-swappable components (which includes memory and processors) redundant hardware, instruction retry, memory mirroring and extensive diagnostic and healing capabilities.
Next-generation servers, utilizing PCI Express technology, will offer powerful and cost-effective computing platforms, scalable hardware building blocks, market-tested best-of-breed solutions, and enterprise-class reliability, availability, serviceability and manageability.
Replacing shared bandwidth infrastructures with switched infrastructures provides the benefits of reliability, availability, serviceability and performance while scaling.
Based on an industry standard with reliability, availability, serviceability and manageability features designed in from the ground up, InfiniBand provides the most robust backplane and data center interconnect solution available.
Brown's "Competitive Analysis of Reliability, Availability, Serviceability and Cluster Features and Functions."
This buys a lot of time not only to stay ahead of our competition in the performance race, but to build in the scalability, reliability, availability, serviceability, data throughput, and critical-to-quality features that our corporate, government and research customer base can find in no other processor architecture."
The InfiniBand Architecture is a new I/O architecture for the data center, designed specifically to support a clean message-passing paradigm, multiple parallel channels, intelligent I/O controllers, high-speed switches, and "just works" RAS (reliability, availability, serviceability).

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