SSD:- SOLID STATE DRIVE

 

Ssd:- solid-state drive (SSD) Solid State Drive (SSD) is a non-volatile storage device that stores and retrieves data constantly on solid-state flash memory. However, this data is stored on interconnected flash memory chips instead of platters, which makes them faster than HDDs. It provides better performance compared to HDD.it is a solid-state storage device that uses integrated circuit assemblies as memory to store data. SSD is also known as solid-state disk although SSDs do not have physical disks. There are no moving mechanical components in SSD. This makes them different from conventional electromechanical drives such as hard disk drives (HDDs) or floppy disks, which contain movable read/write heads and spinning disks. SSDs are typically more resistant to physical shock, run silently, have quicker access time and lower latency compared to electromechanical devices.  most SSDs use 3D TLC NAND-based flash memory. It is a type of non-volatile memory that retains data even when power is lost. SSDs may be constructed from random-access memory (RAM) for applications requiring fast access but not necessarily data persistence after power loss. Batteries can be employed as integrated power sources in such devices to retain data for a certain amount of time after external power is lost. 

SSDs store data in electrical charges, which slowly leak over time if left without power. This is the reason why SSDs are not suited for archival purposes as the worn out drives (that have exceeded their endurance rating) start to lose data typically after one (if stored at 30 °C) to two (at 25 °C) years in storage. 

Hard Disk Drive	Solid State Drive
1.     HDD has longer Read and Write time.	1.     SSD has a shorter Read and Write time.
2.     HDD has higher latency.	2.     SSD has a lower latency.
3.     HDD supports fewer I/O operations per second (IOPS).	3.     SSD supports more I/O operations per second(IOPS).
4.     Over a longer time, and with larger files stored on an HDD, there is a high chance of fragmentation.	4.     Fragmentation doesn’t occur on an SSD drive.
5.     HDD is available in various different capacities.	5.     An SSD drive offers limited storage capacities.
6.     HDD stands for Hard Disk Drive.	6.     SSD stands for Solid State Drive.
7.     HDD offers a slower speed for reading and writing data.	7.     SSD is faster at reading and writing data.
8.     An HDD weighs more.	8.     SDD drives are lighter than HDD drives as they don’t have the rotating disks spindle, and mirror.
9.     The performance of HDD drives worsens because of the fragmentation.	9.     SSD drive performance is never impacted by fragmentation.
10.  The moving parts of HDDs make them vulnerable to crashes and damage because of vibration.	10.  SSD drives can tolerate vibration up to 2000Hz, that is more than HDD.
11.  HDD contains moving mechanical parts, like the arm.	11.  SSD does not contain mechanical parts, only electronic parts like ICs.
12.  HDD drive is older and more traditional.	12.  SSD is a newer type of storage drive.
13.  HDD can produce noise due to mechanical movements.	13.  SSD does not produce noise.
14.  HDD are usually 3.5″ and 2.5″ size for desktop and laptops.	14.  SSD is available in 2.5 inch, 1.8″ and 1.0″, increasing the available space in a computer, especially desktop or server.
15.  The HDD has moving part and magnetic platters. With more uses they are prone to fail.	15.  The SSD drive has no moving parts. With more uses they are less likely to fail.