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| Storage Systems |
Eitan Bachmat
(Ben-Gurion Univ., Israel)
Alma Riska
(Seagate Research, USA)
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| Duration: 180 minutes |
ABSTRACT:
Storage systems represent the only unit that offers persistent storage of data and the slowest component
in a computer systems. As such effective scheduling, caching, and redundancy are critical for the
efficient and reliable operation of storage systems. Three decades ago, considerable effort was put on
modeling and analysis of storage systems that resulted in many optimized disk scheduling algorithms, data
redundancy schemes, and cache management techniques. The tutorial revisits these existing works with the
intention of putting it into the perspective of the most recent advances in the architecture and
operational environments of storage systems. The tutorial will explain why non-interruptability of jobs
and the non-conserving nature of work are critical and how they affect scheduling, cache management, and
data placement algorithms. The tutorial will identify new challenges faced by storage system designers
and how the recent advances in modeling and performance evaluation can be applied in storage systems
analysis.
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