Towards Benchmarks for Availability, Maintainability, and Evolutionary Growth (AME) A Case Study of Software RAID Systems

1/26/00


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Table of Contents

Towards Benchmarks for Availability, Maintainability, and Evolutionary Growth (AME) A Case Study of Software RAID Systems

Outline

Why benchmark AME?

Why benchmarks?

The components of AME

Outline

How can we measure availability?

Example Quality of Service metrics

Availability benchmark methodology

Methodology: reporting results

Outline

Case study

Benchmark environment: metrics

Benchmark environment: faults

Disk fault injection technique

System configuration

Results: single-fault experiments

System behavior: single-fault

System behavior: single-fault (2)

Interpretation: single-fault expíts

Results: multiple-fault experiments

System behavior: multiple-fault

Interpretation: multi-fault expíts

Maintainability Observations

Maintainability Observations (2)

Outline

Conclusions

Future Directions

Backup Slides

Availability Example: SW RAID

System behavior: multiple-fault

Author: Aaron Brown

Email: abrown@cs.berkeley.edu

Home Page: http://istore.cs.berkeley.edu

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