Solid-state drives (SSDs) are emerging as the storage technology of the future. SSDs use electronic circuits rather than mechanical components like hard disk drives to store data. They have no moving parts, faster read/write speeds, lower power consumption, and are more resistant to damage. While SSDs provide better performance than HDDs, they also have some limitations like write endurance and cost. Overall, SSDs are expected to become the basic storage component in servers and PCs due to their efficiency advantages over traditional hard drives.

1. “
”
Solid-State Drive (SSD)
-the storage technology of tomorrow.
Seminar Coordinator: Submitted by:
Ms. Prabha Naik Subha Bir Mathema
Asst.Prof. 1NC10CS074
Dept of CSE, NCET
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2. Abstract
 A solid-state drive (SSD) (also known as a solid-state
disk or electronic disk, though it contains no actual "disk" of any
kind or motors to "drive" the disks) is a data storage
device using integrated circuit assemblies as memory to store
data persistently.
 SSD technology uses electronic interfaces compatible with
traditional block input/output (I/O) hard disk drives, thus permitting
simple replacement in common applications.
 Also, new I/O interfaces like SATA Express are created to keep up
with speed advancements in SSD technology.
 SSDs have no moving mechanical components.
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3. Contents
 Overview of HDD
 Overview of SSD (What is this Technology?)
 Architecture
 How it stores Data?
 HDD vs SSD (Comparisons)
 Merit and Demerit
 Conclusion
References
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4. The most valuable resources?
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5. Data
and
Data Storage
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6. Pre-existing Storage Technology
Cost per byte
Increases-
Storage Capacity
Decrease
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Non-volatile
Volatile

7. Overview of HDD
 Magnetic Storage Media.
 Stores data in Magnetic Disks.
 Read/Write Head for Storing and Retrieval of data.
 Spindle and Motor to rotate disk.
 Actuator arm.
 Fragile Disk makes it prone to
damage.
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8. Overview of HDD (contd.)
 40% annual increase in capacity of HDDs.
 But Only 2% annual increase in random I/O performance.
 Failure in today’s requirement.
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9. Overview of SSD
 NAND-based Flash Storage Media.
 Stores data in Multi-Level Cell(MLC) NAND.
 Performance and Power consumption enhancement.
 Unlike HDD, SSD has no moving parts.
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10. Architecture
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11. Architecture (contd.)
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12. How it stores Data?
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13. How it stores Data? (contd.)
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14. HDD vs. SSD
 Startup-up time (Windows 7): 22 seconds(SSD), 40
seconds(HDD).
 Data read-write speed: 510-550 MB/second(SSD), 50-150
MB/second(HDD).
 Noise: Silent(SSD), Noise from moving parts(HDD).
 Temperature control: No cooling system(SSD), Require if
temperature exceed it limit(HDD).
 Excel file open speed: 4 seconds(SSD), 14 seconds(HDD).Dept. of CSE, NCET
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15. HDD vs. SSD (contd.)
 Power Consumption:
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16. Merit and Demerit
Merit:
Faster Data storage and retrieval.
Lesser Power Consumption.
Demerit:
Write endurance limit.
Expensive.
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17. Conclusion
 More power efficient.
 More Performance efficient.
 Cost optimization through hybrid combination.
 Will be basic storage component of any server.
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18. References
 http://computer.howstuffworks.com/solid-state-drive.htm
 http://en.wikipedia.org/wiki/Memory_hierarchy
 http://computer.howstuffworks.com/flash-memory.htm
 http://en.wikipedia.org/wiki/Solid-state_drive
 https://www.usenix.org/legacy/events/usenix08/tech/full_pap
ers/agrawal/agrawal_html/index.html
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19. Thank You!
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