About SSD industrial storage

2018-09-15 14:23
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First of all, the biggest difference between SSD and traditional hard disk is the storage method. SSD industrial storage uses flash memory as the storage medium, and the seek time is almost zero, while the traditional mechanical hard disk seeks through the magnetic head by means of mechanical drive. Data storage and reading, at this point, directly lead to the read and write speed of SSD is not an order of magnitude faster than traditional mechanical hard drives. This fastness can be verified by the boot time when using SSD as the boot disk. Generally, the boot time after win7 optimization is about 15 seconds, while that of XP is about 10 seconds. These boot times are all It is extremely difficult to achieve with traditional mechanical hard drives.


The second is the good stability. Since there is no pure mechanical movement when reading and writing data, it shows its very good anti-fall and seismic performance, and the probability of physical damage is very small. It is precisely because it has no mechanical movement, so it will not generate heat due to friction or noise when working, allowing you to truly experience the "zero noise" working environment.


Then there is the low power consumption of the SSD. Since there is no servo motor drive of the traditional hard disk, the power consumption of the SSD is very low. The energy consumption of SSDs of different capacities is generally between 1.3W and 2.8W, while the standby time The power consumption is as low as about 0.3W, which can effectively extend the standby time.


I have introduced some of the advantages of SSD before, so let's briefly introduce the composition and brief introduction of SSD.


SSD is mainly composed of main controller, PCB and flash memory particles. The main control is equivalent to the brain of the SSD, responsible for the processing of the SSD and external data. It can be regarded as the CPU in the computer, which has a great impact on the read and write speed of the SSD. The flash memory of the SSD is the place where the data is stored, and it has a great impact on the read and write speed. It also has a certain impact, and the PCB is responsible for the transmission of electrical signals converted from data read and written. A good SSD adds a cache chip next to the main control chip, which mainly assists the main control chip to process data, thereby further improving the performance of the SSD. At present, SSD flash memory particles are mainly MLC and SLC. SLC is the most stable and the technology is the most mature, but the capacity is small and the price is more expensive. MLC has a large capacity and a relatively moderate price. At present, MLC-type Flash SSDs are the most used by consumers.


At present, the main problems for SSD are capacity, service life and price. Regarding the capacity, with the rapid development of the semiconductor industry, the capacity of Flash particles will also increase. In the end, it is entirely possible for the capacity of SSD to reach or exceed that of traditional mechanical hard drives. Due to the limitation of Flash's P/E times, the service life of SSD is also affected. However, even if you look at the current P/E times, consumers want to completely exhaust the life of an SSD, and the mass data will be fully loaded every day. It will take at least three or four years to write down the writing. The problem is that no one is tossing like this. So the problem of service life is not a problem anymore. As for the price, this is just not time yet. Now it has been the "sky price" (compared to traditional hard drives) when SSDs first debuted. Now you can buy one with good capacity and good performance for four to five hundred dollars. Therefore, the price issue will become more affordable over time.


It can be seen from this that these problems that currently appear to be restricting the development of SSDs will be easily resolved as time goes by. Facing the huge market demand, more and more merchants are devoting themselves to the SSD industry, which will also greatly promote the development of SSD technology. I believe that it is only a matter of time before SSDs eliminate traditional mechanical hard drives.