API Governance and Monetization - The evolution of API governance
A better storage solution
1. A better storage solutionA better storage solution
Solid State Drives (SSD)Solid State Drives (SSD)
By PRATEEK CHOUDHARYBy PRATEEK CHOUDHARY
EC-3 0813231075EC-3 0813231075
2. What is a Solid state drive ?What is a Solid state drive ?
• A solid-state drive (SSD) is a
data storage device that uses solid-state
memory to store persistent data .
• SSDs uses microchips which retain data in non-
volatile memory chips .
• Contains no moving parts .
• Performance upgrade over Hard disk drives
(HDD).
• SSDs use the same interface as hard disk
drives .
3. The problem with HDDs and whyThe problem with HDDs and why
we need SSDs.we need SSDs.
• Processors have increased in speed more
than what Moore’s law predicted but HDDs
didn’t.
• This difference created a substantial
performance gap between how fast a
processor demands data how fast a HDD
responds.
• HDD lags behind processors due to
electromechanical components.
4. Features of SSDFeatures of SSD
• Greater read/write performance.
• Have lower access time and latency.
• Low Power Consumption.
• Very high reliability and endurance.
• No moving parts hence no sound.
• Less susceptible to physical shock and temperature.
• Very light weight.
• Small form factor.
5. Two types of SSDsTwo types of SSDs
1. Flash Based1. Flash Based
Most SSD manufacturers use non-volatile flash memory to create more
rugged and compact devices for the consumer market. These flash
memory-based SSDs, also known as flash drives, do not require batteries.
Non-volatility allows flash SSDs to retain memory even during sudden
power outages, ensuring data persistence. It performs better than
conventional hard disks because of its negligible seek time.
6. 2. DRAM Based2. DRAM Based
SSDs based on volatile memory such as DRAM are characterized by ultra
fast data access and are used primarily to accelerate applications that would
otherwise be held back by the latency of
Flash SDDs or traditional HDDs.
DRAM-based SSDsusually incorporate internal battery and backup storage
systems to ensure data persistence while no power is being supplied to the
drive from external sources. If power is lost, the battery provides power while
all information is copied from random access memory (RAM) to back-up
storage. When the power is restored, the information is copied back to the
7. Types of SSD configurationsTypes of SSD configurations
Multi-Level Cell
(MLC)
• For the Consumer
• Higher Capacities
• Slower than SLC but faster than
HDD
• Affordable
Single Level Cell
(SLC)
• For Industrial Use
• Lower Capacities
• Fastest
• Expensive
10. Host interfaceHost interface
The host interface is not specifically a component of the SSD, but it is a key
part of the drive. The interface is usually incorporated into the controller shown
above. The interface is generally one of the interfaces found in HDDs. They
include:
•Serial ATA
•Serial attached SCSI (generally found on servers)
•PCI Express
•Fiber Channel (almost exclusively found on servers)
•USB
•Parallel ATA (IDE) interface (mostly replaced by SATA)
•(Parallel) SCSI (generally found on servers; mostly replaced by SAS)
11. ApplicationsApplications
• Internet Service Provider Applications
• Data Bases and Data Warehousing Applications
• On-Line Transaction Processing and Networked Systems
• Video Processing
• High Performance Swap Files
• High speed server data storage and retrieval
• Enthusiast and performance computing
• High Performance Swap Files
13. SSD Disadvantages
• CostCost – The cost/MB of solid state storage exceeds mechanical drive
technology by orders of magnitude. SSDs are inexpensive relative to their
benefits, however, in many applications. SSDs now approach $3/MB making
them applicable in many applications that were previously cost prohibitive.
• Storage DensityStorage Density – The storage density of SSDs lag that of conventional
disks in comparable packaging form factors.
• Non-Volatility – SRAM needs some form and battery backup and
controller to create a non-volatile storage medium. DRAM memory
technology need batteries and or disk/tape backup to create a non-volatile
device.
