Lecture13 - COP 5611 Operating Systems Spring 2010 Dan C....

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Click to edit Master subtitle style 5/13/10 Lecture 6 COP 5611 Operating Systems Spring 2010 Dan C. Marinescu Office: HEC 439 B Office hours: M-Wd 1:00-2:00 PM
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5/13/10 22 2 Lecture 13 n Reading Assignment: Chapter 8 from the online textbook n Homework 3 due on March 3 n Midterm: Wednesday March 17, the first week after Spring Break n Last time: ¨ End-to-end-layer ¨ Resource Management - Congestion n Today: ¨ Faults, Failures and Fault-Tolerant Design ¨ Measures of Reliability and Failure Tolerance ¨ Tolerating active Faults n Next time
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5/13/10 Reliable Systems from Unreliable Components n Problem investigated first in mid 1940s by John von Neumann. n Steps to build reliable systems ¨ Error detection n Network protocols (link and end-to-end) ¨ Error containment – limit the effect of errors n Enforced modularity: client-server architectures, virtual memory, etc. ¨ Error masking – ensure correct operation in the presence of errors n Network protocols: error correction, repetition, interpolation for data cu real- time constrains 33
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Faults and errors n Fault- a flaw with the potential to cause problems ¨ Software ¨ Hardware ¨ Design ¨ Implementation ¨ Operation ¨ Environment n Types of faults ¨ Latent ¨ Active n 44
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This note was uploaded on 05/12/2010 for the course CS COP5611 taught by Professor Dancristianmarinescu during the Spring '10 term at University of Central Florida.

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Lecture13 - COP 5611 Operating Systems Spring 2010 Dan C....

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