Sunday, June 3, 2012

What is SSD?

Introduction 


In the last few years, people are talking about SSD (Solid State Drives), lots of users have wrong conclusions on offers of SSD, and how SSD different from a traditional hard drive. Let’s have a look at some primary basic facts about SSD. 



What is SSD? 

SSD designed to replace an HDD (Hard Disk Drive). They don’t have any moving parts; instead of the data is stored and retrieved from solid state flash memory (NAND).Basically this SSD used in two different methods,

Single level cell (SLC).
Multi-level cell (MLC).

Single level cell is very expensive compare to multi-level cell, so be likely to do something to only find its way into SSD’s that are designed especially for the business market, where workload is high and constant. Multi-level cell has found a place recently in the PC user market, and it is significantly used as an operating system drive, which includes all the user’s applications installed on the SSD. 

SSD have all level of capacities at the moment, 512GB is considered a large for an SSD, but because of technical development, SSD as large capacity as 4TB could be made right now and SSDcan access data 10 to 100 times faster than an HDD, same time no noisy and very small percentages of heat problem, the only problem is cost.
 



Why should choose SSD over HDD? 

SSD is 100 times faster than HDD.
They are much more robust than a traditional HDD.
Compare to HHD, SSD was small size.
They produce very little heat.
Value for the money.

But what about the disadvantages? 

Cost of the SSD pretty high compare to HHD, as SATA 3 SSD have nearly all the bugs ironed out.


Performance and Quality of SSD

As we already highlighted above, the SATA 3 SSD performance a way further forward of anything that can be achieved by HDD currently and it’s trying to make faster than SSD, HDD may get faster than it is at the moment, but in future SSD may be more developed successively. 

There are thousands of reliable information and examples about SSD and that how long they will last. Many people mistakes commonly when they considering an SSD in their look at the write cycles that a NAND flash cell can withstand. In case of multi- level cell based on drives, this is around more than 10,000 write cycles and around more than 100,000 write cycles for single level cell.  This looks like quite a low level. When leveling makes confirm that no cell is overused and spreads the workload in practice evenly across all the NAND cells in an SSD. In practice, however the 10,000 write cycles look low for multi-level cell based NAND, you can expect about minimum 10 years of use out of your SSD, and sometimes as maximum more than 25 years. What’s more to tell? Your SSD should use up all these write cycles? Then the drive won’t fail and you will never lose your data. Also the drive will simply become read only, and make allow you to safely transfer the DATA over to a new SSD in an easy and proper way.



Availability of SSD 

Availability of SSD drives is now very good indeed. Consumer of SSD now can buy easily in local and international PC stores or can buy through online from international market.
Currently the best SSD brand in the market was CORSAIR.




SSD drives are worth? 

Absolutely worth for each and every users of SSD, you simply get gain performance in your system at this value. People never won’t believe how much faster their system becomes by fitting one until they do, after fix SSD we sure people never want to go back HDD.

1 comment:

  1. first tym i heard about SSD.....
    thank u Xstreampc.... :)

    ReplyDelete