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资讯和新闻
21/06/2022
Swissbit 推出高性能 PCIe-SSD N-30m2
存储容量高达 4 TB 的高性能 NVMe SSD，适用于要求极为严苛的工业应用
全新的 N-30m2 系列将性能、耐用性和大存储容量结合到了紧凑的 PCIe M.2 模块中，适用于极严苛的应用，扩展了 Swissbit 存储解决方案的产品范围。
技术说明
01/03/2022
Power Failure Testing
A sudden power failure can lead to various problems with flash media, resulting in a total failure, which is the worst case. This can be remedied by storage media that can still write all the data in the cache to the flash, recognizable by the addition PLP (Power Loss Protection).
But how to test the robustness against sudden power failures as part of product qualification? Our latest TechNote gives a detailed insight and provides an instruction for building your own test hardware.
25/01/2022
Comparing Specifications
Whether a flash storage medium is suitable for the intended use case can be determined in advance using the data sheet. Depending on the manufacturer, however, different test methods are used, which means that the resulting values are not always easy to compare with products from other manufacturers.
The typical methods, programs and terms that are used for such measurements are explained in this TechNote to provide a way to better compare the characteristics of different SSDs and match them with the intended use.
27/07/2021
NAND Flash Endurance Testing
Typical application scenarios for NAND flash memory assume a service life of 3–5 years and in some cases even significantly longer. The flash type to be used (SLC, pSLC, MLC, TLC, QLC) is selected accordingly, which has the necessary endurance, i. e. the lifespan measured in erase and programming cycles.
If the specified endurance is to be checked as part of the qualification of a NAND flash memory for a project, the rate of aging has a significant influence on the result.
23/12/2019
Bad Blocks
The presence of factory bad blocks in NAND flash is as much a technology reason as the occurrence of additional bad blocks during the lifetime.
Both are no (negative) quality indications.
However, with the occurrence of bad blocks during the lifetime, the correct handling of these events by the firmware is critical in order not to lose the new data as well as the already stored data of such blocks.
16/12/2019
Performance Tests
To compare speed specifications in data sheets of NAND flash memory media, the test conditions must be identical. If the measurement was not started repeatedly or did not cover the entire logical address space, the specified speed can be significantly higher than the real achievable speed.
18/09/2019
Garbage Collection
Unlike hard drives or NOR flash, NAND flash does not have a fixed mapping of logical memory addresses to physical memory addresses.
The assignment takes place via mapping tables, which are managed by the firmware of the storage medium.
18/09/2019
ENDURANCE - WAF
When it comes to the endurance of NAND Flash products, the Write Amplification Factor plays an important role in maximizing a products usable life.
活动
星期二, 21.06.2022
embedded world 2022
星期二, 02.08.2022
