April 13, 2011

6 Secret About SSD

  Apparently, many who do not know about Solid State Drive, or which often referred to SSD. SSD is one of the main storage medium in addition to the hard disk. In a computer, SSD and hard disk serves as a medium to put all the data. Booting a computer also use both these objects. Unfortunately, not all people familiar with SSD. Some people whom I met only express an opinion "He said fast ...." without knowing how fast the speed of a SSD.

  On this opportunity, Loserba Review team will review a few things associated with SSD. We hope these tips make you more aware of the SSD. However, this article may be far from perfect. Therefore, if you have any tips regarding the introduction of other SSDs, we hope you will let us know.


TRIM is a command directed to the appropriate firmware from the SSD. If you do not already know, firmware is the same with computer's BIOS in general.

A storage media will always write and read data. When deleting a data, it is actually also an activity to write data as well. On your hard disk, data deletion events are not completely erased. Deleted is a link that refers to these data in a series of data called the Table Of Content. Currently there are no data that would be written in place of (sector) the same time, new data will be overwritten directly in place of the data (sector) of the old. Thiscalled the Overwriting .

In the hard disk, overwrite events are common. Unfortunately, not for SSDs. Overwriting activities will lead to "junk data" or Garbage. Garbage is causing an SSD would slow down over time because the old data is still there, so make SSDs must sort out between the old data with new. This makes the SSD is slow in reading data.

This is where the TRIM effect. TRIM sure when the operating system will write in the same sector, the old data will be removed totally without any garbage anymore. In addition, the TRIM function will also make all sectors of the deleted and formatted into the net. This would make an SSD into fast just like new.

2. Contents from SSD

You never see the contents of an SSD? An SSD does not contain the same complex mechanical hard disk. If you ever see a RAM (random access memory or computer memory), the contents of an SSD is similar to that. As shown at the top, SSD only consists of a set of installed memory on a board.

3. MLC and SLC

Have you heard about the SLC and MLC? Both these names refer to the type of memory used by SSDs. SLC stands for Single Level Cell. As the name implies, this type of memory will store a data bit in a memory cell. MLC or Multi-Level Cell, storing two bits of data in a memory cell. SLC has many advantages compared with the MLC. Speed ​​is the first. In addition, the SLC also has a longer life cycle from MLC. Unfortunately, the price of SLC memory type is more expensive than MLC, making it rarely found in consumer SSD.

4. Speed

You've read point number 2? Actually, it was already answered. SSD has no moving mechanical advance should be in writing and reading data. In addition, SSDs do not need to spin like a hard disk spindle. All done electrically.

5. More Safely

There are some opinions that say that an SSD is more secure than the hard disk. We also have the same opinion. The first reason is that an SSD has no mechanical in it to make it resilient storage media. When slammed, the hard disk will be damaged and of course your data is inaccessible. What kind of security an SSD? You can see it in this video.

6. Expensive?

SSD tends to 'heavy price'. Why? This is because the production of a flash memory will cost more expensive. In addition, the technology is also relatively new. SSD is a new product that cost over time will go down. The price of a SSD cheapest two years ago at a price of SSDs with a capacity of 60 GB now. For an SSD with a capacity of 30 GB of course you had to spend around US$ 90. With the same price, you'd have to get a hard disk with a capacity of about 2 TB. The comparison is much, right? However, you must view it from different sides. After seeing the points above, can be seen that the SSD is more secure. Imagine you are a frequent traveler with a laptop. While working on the car, suddenly there are holes that lead to your notebook fall. When it happens to a hard disk, it can make the hard disk is damaged. Not with SSD. Data that is worth millions of dollars were safe by events like this. In essence, the SSD is more resistant rock, water, vibration, and heat. Now, consider, where a much more expensive: your data or an SSD?

URL: http://loserba.blogspot.com/2011/04/6-secret-about-ssd.html

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