Analysis of SSD health and Prediction of SSD life

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Publish Date: 
Wednesday, September 21, 2016
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Abstract: 

Unlike HDDs, which have some parameters that are specific to magnetic hard drives, SSD do not have such parameters Instead, they have other variables representing overall health of the disk. SMART (Self-Monitoring, Analysis and Reporting Technology) tools. Such tool calculates SSD health by analyzing the following variables: Reallocated Sectors Count, Current Pending Sectors Count, Uncorrectable Sector Count, as well as Percentage of the Rated Lifetime Used (i.e. SSD Life Left, whichever is available). In this paper we will show the two methods which we used to calculate the health of the drive. We will show you how you can accurately predict the life of an SSD, when you must consider replacement of an SSD, and when you need to consider online backup to the cloud storage.

Learning Objectives

How do you calculate SSD life?
Do we need to calculate the SSD life?
Is the Wear level a good indicator for the SSD life?
What is the common root of SSD failure?
What is the right way to estimate SSD lifetime?