By PURPLELEC | 02 November 2023 | 0 Comments
How to choose an industrial-grade SSD?
How to choose an industrial-grade SSD?
Tip 1: Core components/firmware determine quality
For solid-state drives, there are three main parts that affect its performance. One is the main control, which is the core component of SSD; the other is the NAND Flash memory chip; the third is the development of firmware. Among them, the main control and flash memory have the greatest impact on the performance of industrial-grade SSD.
1. Main control chip analysis
The main control chip is actually a processor, which is mainly divided into two types: compression algorithm and non-compression algorithm. It is the heart and engine of SSD.
Among them, the main control of non-compressible algorithm is in the mainstream position, covering high/medium/low-end three-level product lines.
2. Flash memory chip analysis
If the main control chip is the heart and engine, then the flash memory chip is the blood and gasoline. The flash memory chip is the storage medium of the entire industrial-grade SSD, or the service life of the entire solid-state drive depends on the flash memory.
According to the structure, it is divided into three types: SLC (single layer), MLC (double layer), and TLC (three layers). At present, TLC flash memory has risen to the mainstream status, and MLC flash memory has gradually retreated into the mainstream.
Flash memory is divided into original factory and non-original factory. Although the quality of original factory is good, the purchase cost is high. The purchase cost of non-original flash memory is low, and the quality is basically medium to high.
Flash memory is divided into two flash memory architectures: Toggle DDR and ONFI. ONFI flash memory is divided into two types: synchronous and asynchronous flash memory according to the operating mode. Synchronous flash memory is twice the performance of asynchronous flash memory.
Tip 2: Distinguish between good and bad through performance indicators
Core hardware fundamentally determines the quality and performance of industrial-grade SSDs. So are there quantitative indicators that allow consumers to intuitively distinguish the performance of solid-state drives? The answer is yes. Solid-state drives have two quantitative indicators, one is the read and write speed MB/second, and the other is the number of interface reads and writes. The unit is IOPS, which is the number of read and write (I/O interface) operations per second.
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