IEEE Twin Cities News

Data Temperature and Big Data Storage, from the Hardware Perspective

Computer Chapter Meeting

Author: Steve/Sunday, November 26, 2017/Categories: Computer

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Event date: 12/4/2017 4:30 PM Export event

Magnetic data storage technology, such as HDD has had tremendous growth, and only until recently, the areal density capability has slowing down.  It was until last couple of years, 3D NAND based SSD starts to take over some of the HDD market.  In our recent study, a standard data temperature definition which links both capacity and access speed together.  Using this standard data temperature definition, we are able to summarize all digital data properties and put them into one chart.  In addition, in this talk we are going to show how each of the data storage technologies, such as: DRAM, 3D-NAND, HDD, Tape and Blu-ray represent and how the data storage technologies evolution occurs.  As the HDD drive capacity has increased by several orders of magnitude over the past two decades, the average data temperature in the drive is actually reduced.  We will show the universal relation between drive data temperature and its capacity.


Based on the analysis, prediction of future data storage solutions will be given, including several topics that are of great interest to the HDD community, such as:



  1. For HDD based data storage server, how to improve its capacity beyond where we are today.

  2. Tape and Blu-ray based data archive system, will it be taking more data archive market or it will disappear within the next decade?

  3. Where HAMR is going? “Heat” assisted magnetic recording eventually used for “cold” storage.


In addition, we will illustrate the similarities of digital universe vs. physical universe and show that as the amount of data or digital university volume expands, the average temperature of the digital universe is monotonically reduced.  From technology perspective, we show how this theory will impact the data storage and IT industry in the following decades.

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