Flash Aware Analytical Modeling of SSDs Interconnection Networks

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Masrour, Fatemeh | 2018

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 51494 (19)
University: Sharif University of Technology
Department: Computer Engineering
Advisor(s): Sarbazi Azad, Hamid
Abstract:
In recent years applying solid state drives in data centers, cloud computing infrastructures and commercial servers have had a considerable growth. Low power consumption, high throughput and resistance to physical damages are some of the advantages of SSDs over HDDs. In recent works the necessity of using an interconnection network as a communication subcomponent between memory flash chips and disk controller is described. Disk mechanisms (mapping, wear-leveling and garbage collection) influence on throughput of the network. Based on this fact in this research an analytical model is provided considering disk mechanisms, flash chip structure and traffic characteristics. The error of the model for some of Microsoft workloads is less than 15%. For modeling the network latency, it's necessary to analyze traffic burstiness and its distribution among network channels. Also the effect of SSD mechanisms on traffic have to be analyzed
Keywords:
Analytical Modeling ; Traffic Modeling ; Solid State Disk Drive ; Interconnect Network ; Bandwidth

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