Analysis of write amplification on solid state drives in datacenters
Date Issued
2022
Author(s)
Ðurašević, Slađana
Pešović, Uroš
Luković, Vanja
Ðorđević, Borislav
Abstract
Solid state drives (SSD) becomes the dominant
type of secondary memory in personal computer systems,
thanks to their superior read and write performance when
compared to traditional hard disk drives (HDD). Due to the
limitations of NAND flash memory technology SSD has several
disadvantages that make them unfavorable for permanent data
storage in data centers. One of the critical factors in SSD
operation is write amplification which introduces additional
system writes that must be performed for each user write, thus
increasing cell wear and reducing drive performance. In this
paper, we analyzed the write amplification of SSD drives
operating in the Backblaze data center.
type of secondary memory in personal computer systems,
thanks to their superior read and write performance when
compared to traditional hard disk drives (HDD). Due to the
limitations of NAND flash memory technology SSD has several
disadvantages that make them unfavorable for permanent data
storage in data centers. One of the critical factors in SSD
operation is write amplification which introduces additional
system writes that must be performed for each user write, thus
increasing cell wear and reducing drive performance. In this
paper, we analyzed the write amplification of SSD drives
operating in the Backblaze data center.
Subjects
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