Synonyms
Flash disk drive; Solid state disk
Definition
Solid-state disk device that is made up of nonvolatile memory and is accessed using traditional SCSI disk protocols.
Main Text
Regular hard disk drives (HDD) have both a computer complex (CPU, memory) and also mechanical components like arms and platters, whereas a SSD is a solid state drive with no mechanical components. SSDs also contain a computer complex. SSDs can be made up of different types of nonvolatile memories like flash, phase change memory (PCM), spin-torque memory (STT-MRAM), and nano-RAM (NRAM). Furthermore, there are many variants of flash such as single cell flash (SLC) or multiple cell flash (MLC) or 3-D NAND flash. Since SSDs do not have any mechanical arms to move, SSDs provide better random read/write performance than HDDs. The different types of SSDs provide different performance, density (impacts capacity), power usage, and endurance trade-offs. Different SSD vendors are advocating different types of...
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Recommended Reading
Kasavajhala V. SSD vs HDD price and performance study. Dell Technical White Paper, 2011 May.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Section Editor information
Rights and permissions
Copyright information
© 2018 Springer Science+Business Media, LLC, part of Springer Nature
About this entry
Cite this entry
Voruganti, K. (2018). Solid State Drive (SSD). In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_80698
Download citation
DOI: https://doi.org/10.1007/978-1-4614-8265-9_80698
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-8266-6
Online ISBN: 978-1-4614-8265-9
eBook Packages: Computer ScienceReference Module Computer Science and Engineering