In the moment, DIY hardware flourifies, there are many large-scale manufacturers in every hardware area to compete in product competition. Under the driving of marketization competition, many hardware merchants use ordinary users to hardware parameters and products. The situation of understanding, the high-priced selling "Li Guan" goods, especially in the era of era, using false propaganda, deliberately concealing key parameters, and triggered many "martyrs wall" accidents.
So, how do we choose the right DIY hardware to avoid the "martyst wall" as a normal user? Today, the author will first come from the moment the most hot, the author's relatively familiar solid-state hard disk, providing some methods and tricks to choose a solid-state hard drive, these methods and 诀窍 may not help you pick up the highest quality solid state, but must It can reduce the risk of the cottage solid state drive to some extent.
In fact, picking a good solid-state hard drive is very simple, the author simply summarizes the following steps, look at the brand, two looks, three look at the main control. Below, let's explain one by one.
Look at the brand: The first echelon can buy
Like all other DIY hardware, the solid state hard drive industry has gradually begun to present a brandified trend in the past few years, and there are many large-scale solid-state hard drive storage vendors that have been famous.
When we pick a solid-state drive, let's take a look at the latest products of these big brands that have established within the solid state drive industry. At present, the brand of solid-state hard drive industry is very obvious, especially the consumer storage market, has many largest manufacturers available.
The main first-line large factory has the international storage brand of San Dick, Toshiba, Samsung, Intel, with its own wafer factory and the R & D center, and their resection experience in the storage industry, and the main raw material flash particles of Solid state hard drives. The production advantage, so that these big plants have laid the brand advantage in the early days of the development of the solid-state hard drive.
Next, there are also some long-term and Toshiba, Intel, Samsung and other manufacturers who have a depth-in-depth-in-depth-in-depth-in-depth-in-depth-in-depth, which can get the original Flash granules of the first line, and the development of the consumer storage market. Let these manufacturers guarantee considerable product quality, and product performance. This class has mainstream manufacturers such as Puxor, GALAXI, and Wei Gang.
These vendors, whether it is in the production of flash particles, or product research and development and brand, can be said to be the best in the solid state hard drive industry, buy their solid-state hard drive products, at least in quality.
Look at the particles: the original particles are most assured
The solid state drive is a newly popular DIY hardware. Its internal structure is very simple, mainly composed of the master chip, flash memory particles, and the cache chip, and uses a PCB board as a vector, and data reads and is performed by photoelectric conversion. Write.
Among them, the most core, the internal production cost is the flash particle that acts as a critical storage function.
The so-called flash memory is essentially a memory of long life, non-volatile (still maintaining stored data information), data deletion is not in a single byte, but is fixed by fixed block. Unit.
It is the non-volatile of flash particles, so that flash particles have become new media in the storage industry, thereby creating a new storage era with flash particles as the core.
In addition to non-volatile, the flash particles are stored in performance and stability, which are far exceeding the old models of the traditional mechanical hard disk using the mechanical means by using electronics write and reading. The current and future most valuable storage products.
In the field of solid state drives, according to the difference in electronic unit density in the NAND flash, it can be divided into SLC (single-level storage unit), MLC (double storage unit), and TLC (three-layer storage unit), the three storage units are Life and cost has a significant difference.
SLC (single-layered storage) single-layer electronic structure, the voltage variation section is small, long life, and the number of read and write is more than 100,000 times, the cost is high, mostly used for enterprise high-end products. MLC (multi-layered storage), using high and low voltage, different buildings, long life, cost acceptable, multi-purpose high-end products, and read and write are about 5,000.
TLC (three-layer storage), is MLC flash extension, TLC reaches 3Bit / Cell. The storage density is the highest, and the capacity is 1.5 times the MLC. The lowest cost is low, the life life is low, and the number of read and write is around 1000 ~ 2000 is the first mainstream manufacturer's preferred flashing particles.
Currently, mainstream so-called original flash particles manufacturers have Toshiba Toshiba, Samsung Samsung, Intel Intel, Micron Miguang, Skhynix Hercules, SanDisk San Di and other six wafers, and their subsidiaries produced by the subsidiaries are almost occupied. Nearly 90% of the global market.
Before purchasing related products, through the network or other way, the product particles are checked, and the original particles produced by the above six wafers are selected. The so-called original particles are hopped on the flash particles, and the specific model code of their respective vendors. Consumers can perform granular queries according to the model code.
In addition to querying whether the particles are original production, in the particle type, consumers need to pay attention. The mainstream manufacturers have almost all of the 3D TLC particles are mainly flash materials. On the one hand, based on flash cost considerations, on the other hand, it is also because of the development of technology, and the life and performance of TLC particles have a long progress and improvement, almost Alternative MLC particles.
For whether it is TLC particles, the author believes that there is no need to entangle, just as the MLC has just appeared in the market, many people say that as long as SLC particles do not rub the mlc. The times are progressing, the technology is evolving, and TLC must also be generally generally mainstream of Solid state hard drive, as the MLC is generally mainstream.
Look at the main control: choose the mainstream
Just said, the main core controls within the solid state drive are flash particles, master chips, and cache chips.
With the update of technology, and further reduced the volume of the solid state drive, the external cache chip is slowly integrated into the main control chip of the solid-state hard drive in recent years, the solid-state product without external cache chip has become the mainstream of the industry.
As the CPU is in the PC, the main control chip is actually like the CPU. It is the core device of the entire solid state hard disk. It is a reasonable deployment of data on each flash memory chip. The second is to undertake the entire data. Flash chips and external SATA interfaces.
The ability between different main controls is very large. In the data processing power, the algorithm, there will be very different ways to read the write write control of the flash memory chip, which will directly lead to a large gap between the solid state hard drive products. .
Current main control chip vendors have Marvell Maiwei (commonly known as "horse cards"), Sandforce, Siliconmotion Huirong, PHISON group, JMicron wisdom, and Samsung, Toshiba, Intel, etc. For the main controller for their own products. And these major host vendors have their own corresponding features, applied to different levels of solid products.
Especially with the landing of the NVME protocol, the product competition between the new round of main control vendors is more hot, and the constant old master manufacturer is out, and the new vendors join.
The traditional industry is referred to as "sf", and JMicron is in the case of continuous breakthrough in solid-state hard drive, and the new "small crab" Rui Wei Realtek is stabilized in the main control industry. Foot, continuously expand new solid-state brands.
For consumers, the specific parameters of the main control chip of the solid-state hard drive have no need to know much, after all, in terms of absolute performance, the gap between the ownership of each master is not very big, and the only thing to note is to select the mainstream main control.
As mainly main control, it refers to the relevant channels, it is easy to query the product model and the main control chip of the detailed parameters, such as the number of main control brands described above. On the main control chip, it is mainly not an active, unknown main control of the cottage medium research and development, there is no particularly obvious performance difference in quality and function.
Look at the brand, two look at the particles, three to see the main control. In fact, the author just provides a netizen with a dimension of the solid state drive, the quality of the solid-state hard drive, in addition to the above three dimensions, there are still many content, including product work, firmware optimization, and after-sales service.
As you can use this as a reference, you evaluate and select for the upcoming solid state drive. Of course, the selection of Solid State hard drives only by this dimension is obviously unscientific, and all netizens also need to understand the solid-state hard drive, and they can fundamentally avoid the "martyst wall" in accordance with the actual needs.
This article originally address: https://www.eeboard.com/news/ssd-11/
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