A Fresh Perspective on Total Cost of Ownership Models for...
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A Fresh Perspective on Total Cost of Ownership Models for Flash Storage Zhengyu Yang [1] , Manu Awasthi [2] , Mrinmoy Ghosh [2] , and Ningfang Mi [1] [1] Electrical & Computer Engineering, Northeastern University, MA [2] Samsung Semiconductor Inc., Memory Solution Lab, San Jose, CA Graduate Category: Engineering and Technology Degree Seeking: PhD in Computer Engineering Abstract ID# 1472 Introduction and Goal • We characterize the write amplification of SSDs as a function of fraction of sequential writes in a workload. • We plug this WAF function into our proposed TCO model, which also considers capital and operational cost. • We build the online workload allocation: minTCO-Baseline and minTCO- Perf. • Experimental results show that minTCO reduces the Total Cost of Ownership, and minTCO-Perf further balances the load among disks and maximizes the overall resource utilization. Write Amplification Factor We also propose statistical approaches for calculating components that are essential for TCO rate, and data-averaged TCO rate. Approach: minTCO Allocation Algorithm Evaluation and Conclusions TCO Model This work is published as: Zhengyu Yang, Manu Awasthi, Mrinmoy Ghosh, and Ningfang Mi, "A Fresh Perspective on Total Cost of Ownership Models for Flash Storage", 8th IEEE International Conference on Cloud Computing Technology and Science (CloudCom 2016), and patents US15/092156 and US15/094971.
Transcript of A Fresh Perspective on Total Cost of Ownership Models for...
AFreshPerspectiveonTotalCostofOwnershipModelsforFlashStorageZhengyu Yang[1],ManuAwasthi [2],Mrinmoy Ghosh[2],andNingfang Mi [1]
[1] Electrical&ComputerEngineering,NortheasternUniversity,MA[2] SamsungSemiconductorInc.,MemorySolutionLab,SanJose,CA
GraduateCategory:EngineeringandTechnologyDegreeSeeking:PhDinComputerEngineeringAbstractID#1472
Introduction and Goal• We characterize the write amplification of SSDs as a function of fraction of
sequential writes in a workload.• We plug this WAF function into our proposed TCO model, which also
considers capital and operational cost.• We build the online workload allocation: minTCO-Baseline and minTCO-
Perf.• Experimental results show that minTCO reduces the Total Cost of
Ownership, and minTCO-Perf further balances the load among disks andmaximizes the overall resource utilization.
Write Amplification Factor
We also propose statisticalapproaches for calculatingcomponents that are essential forTCO rate, and data-averagedTCO rate.
Approach: minTCO Allocation Algorithm
Evaluation and Conclusions
TCO Model
This work is published as: Zhengyu Yang, Manu Awasthi, Mrinmoy Ghosh, and Ningfang Mi, "A FreshPerspective on Total Cost of Ownership Models for Flash Storage", 8th IEEE International Conference onCloud Computing Technology and Science (CloudCom 2016), and patents US15/092156 and US15/094971.
