Fault-Tolerant Design of the IBM Power6 Microprocessor

The IBM Power6 microprocessor extends the capabilities of the Power5, dramatically increasing its ability to recover from hard and soft errors without increasing system downtime. The Power6 adds new mainframe-like features for enhanced reliability, availability, and serviceability, including instruc...

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Bibliographic Details
Published in:IEEE MICRO 2008-03, Vol.28 (2), p.30-38
Main Authors: Reick, K., Sanda, P.N., Swaney, S., Kellington, J.W., Mack, M.J., Floyd, M.S., Henderson, D.
Format: Article
Language:English
Subjects:
Availability
Costs
Design engineering
Downtime
Error correction codes
fault isolation
Fault tolerance
Hot Chips 19
instruction retry
Mainframes
Microprocessors
Power system management
Power system reliability
RAS
reliability
Silicon devices
Silicon on insulator technology
Soft errors
Switches
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Description
Summary:The IBM Power6 microprocessor extends the capabilities of the Power5, dramatically increasing its ability to recover from hard and soft errors without increasing system downtime. The Power6 adds new mainframe-like features for enhanced reliability, availability, and serviceability, including instruction retry and processor failover. Optimized for performance and power, the Power6 implements these RAS enhancements without compromising ultrahigh-frequency operation.
ISSN:0272-1732
1937-4143
DOI:10.1109/MM.2008.22