Solid state Drive(SSD)

Given By:Mukesh Kumar Mirrey

MCA III

Guided By:Mr. Lokesh Kumar Rathore

Contents Hard Disk Drive What is SSD? Development and History SSD Structure Memory Controller Advantage Disadvantage SSD Applications SSD vs. HDD Conclusion

Solid State Drive (SSD)

Hard Disk Drive A hard disk drive (HDD is a data storage device used for

storing and retrieving digital information using one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material. The platters are paired with magnetic heads arranged on a moving actuator arm, which read and write data to the platter surfaces.

PlattersSpindleRead Write Head

PlattersTracks

SectorsSolid State Drive (SSD)

Hard Disk Drive

Solid State Drive (SSD)

What is SSD? A solid-state drive(SSD) is a data storage device that uses

solid state memory to store persistent data. It is flash based storage device and It uses same I/O interface developed for hard disk drives.

SSDs do not have any moving mechanical components, which distinguishes them from traditional magnetic disks such as hard disk drives(HDDs).

SSDs use microchips  that retain data in non-volatile memory chips.

SSD uses non volatile NAND Flash Memory , which enables it to retain data when the power is removed.

Solid State Drive (SSD)

Development and History of Storage Media Punch Cards (in 1940s).

Magnetic Tapes/Drives (in 1950s). Hard Drives introduce by IBM in 1956. Improved in 1960. In 1995, M-Systems introduced flash-based solid-state

drives. They had the advantage of not requiring batteries to maintain the data in the memory (required by the prior volatile memory systems), but were not as fast as the DRAM-based.

Solid State Drive (SSD)

SSD Structure

Solid State Drive (SSD)

Memory Use non volatile NAND flash memory. Ability to retain the data without a constant power

supply. Lower cost compared to DRAM. Flash memory SSDs are slower than DRAM solution. NAND Flash components come in densities from 1Gb to

64Gb per chip. NAND Flash components have structures called pages and

blocks.

Solid State Drive (SSD)

Controller Flash controller includes the electronics that bridge the Flash

memory components to the SSD input/output interfaces. The controller is an embedded processor that executes firmware-

level software. Every SSD includes a controller i.e. an embedded processor that

executes firmware-level code and is one of the most important factors of SSD performance.

Functions: Error Correction(ECC). Bad block mapping. Read disturb management. Read and write caching. Encryption. Solid State Drive

(SSD)

Advantage

High performance-Significantly faster than a standard HDD.

Faster seek time-Up to 60x faster than HDD. Higher reliability-No moving parts. Lower power-Lesser power consumption, cooler

operation. Silent Operation-Ideal for post production environments. Light weight-Perfect for portable devices. Wider Operating Temp.

Solid State Drive (SSD)

SSDs are More DurableSolid State Drives feature a non-mechanical design of NAND flash mounted on circuit boards, and are shock resistant up to 1500g/0.5ms. Hard Drives consist of various moving parts making them susceptible to shock and damage.

SSDs are FasterSSDs can have 100 times greater performance, almost instantaneous data access, quicker boot ups, faster file transfers, and an overall snappier computing experience than hard drives. HDDs can only access the data faster the closer it is from the read write heads, while all parts of the SSD can be accessed at once.

Features

Solid State Drive (SSD)

SSDs Consume Less PowerSSDs use significantly less power at peak load than hard drives, less than 2W vs. 6W for an HDD. Their energy efficiency can deliver longer battery life in notebooks, less power strain on system, and a cooler computing environment.

SSDs are LighterFlash-based SSDs weigh considerably less than hard drives – only 77g vs. 752.5g for HDDs. SSDs won't weigh down your notebook when you're on the go or your desktop when rearranging your office!

Solid State Drive (SSD)

SSDs are CoolerAs an energy-efficient storage upgrade for your desktop or laptop, SSDs require very little power to operate that translates into significantly less heat output by your system.

SSDs are QuieterWith no moving parts, SSDs run at near silent operation and never disturb your computing experience during gaming or movies, unlike loud, whirring hard disc drives.

Solid State Drive (SSD)

Disadvantage They are more expansive than traditional hard drives. They currently offer less storage space then traditional

hard drives. Flash memory SSDs are slower than DRAM solution.

Solid State Drive (SSD)

SSD Applications

Desktop Computers Laptops Ultra books HD Camcorder, CCTV Digital Video Recorder (DVR) Smart TV Set Top Boxes Mobile Phones Servers - SSD are used as cache at server side of

Enterprises.

Solid State Drive (SSD)

SSD vs. HDDSolid-State Drive Hard Disk DriveRandom access time 0.1 ms. Random access time 5-10 ms.

Read latency time very low. Read latency time high.

100MB/s to 500MB/s. 50MB/s to 100MB/s.

High Reliability. Low reliability.

SSDs have no moving parts to fail mechanically.

HDDs have moving parts and are subject to sudden failure.

Small and light weight. Relatively large and heavy.

Till now SSDs are available in size up to 2TB. Till now HDDs are available up to 4TB .

Power Consumption 2watts 6-12 watts.Solid State Drive (SSD)

SSD vs. HDD Boot time

Conclusion

Faster Data Access Less Power Usage Higher Reliability

Latest high-end Laptops and Ultra books now comes with SSD

”In coming years SSD will replace HDD”

Solid State Drive (SSD)

References

http://www.slideshare.com http://www.storagesearch.com/ssd-storage-glossary.html http://en.wikipedia.org/wiki/Solid-state_%28electronics%2

9 http://www.storagereview.com/reviews/consumer/ssd http://ocz.com/consumer/ssd-guide/ssd-vs-hdd

Solid State Drive (SSD)

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Solid State Drive (SSD)