Renice high reliable SSD drive can work in the water


Comments

Post a Comment

Popular posts from this blog

NAND Flash Tester, NFA100-E, NFA100, NFA1000

Image
If you want to look for a Nand Flash test equipment, Renice have 3 types of Nand Flash Tester for your option, NFA100-E, NFA100 and NFA1000. What can Nand Flash Testers do? How to select a suitable Nand Flash Tester? Let us show more information, you might find the answer here. Brief Introduction NAF100-E , is an extremely powerful and flexible NAND Flash testing platform specially developed for R&D personnel whereby they can extract NAND Flash parameters in a maximal way by using NFA100-E system commands and even reprocess these parameters for eventual product development. User can also realize their specific testing requirements through API or usage of script commands. NAF100 and NAF1000 , is able to test up to 112pcs/1120pcs of NAND Flash at the same time. Besides all functions that NFA100-E has, NFA100 is equipped with high-low temperature chamber so that users are able to make high-low temp. cycle test, humidity and thermal shock test.NFA100 is also ...
Read more

How to calculate the TBW (Terabyte Writes ) for SSD drive?

Image
Here is the formula for calculating the TBW (Terabyte Writes ) of SSD drive: 1, As know that there is a OP zone (Over-provisioning) in a SSD drive, it takes about 7% of the capacity, so the real capacity you could use is about 93%. 2,  P/E cycles (write cycles) , depending on the Nand flash type of your SSD, and according to the newest process of Nand, their P/E cycles are as following: SLC: ≈ 60,000 MLC: ≈3,000 TLC: ≈1,000 3, WAF (Write amplification) , the perfect WAF is 1, but actually there is no SSD supplier can achieve their WAF to "1" , there are many factors affect the WAF, usually we calculate with 1.5 times. Then, it's easy for you to calculate the lifetime (how many years you can use) for your SSD drive:   Lifetime (years) = (TBW / Workload) / 365 *Workload: total GB written per day
Read more

How to read the reliability of each MLC Nand chip from Page performance?

Image
If all Page performance is basically the same when programming every time, this Nand Flash chip should be the most stable and reliable. Therefore, you can know the reliability of Nand Flash by observing the distribution of each Page performance. Although the datasheet for each Nand Flash chip will indicate detailed time of Erase, Program, and Read Performance , in fact, these Performances average the Lower page and the Upper Page, so it will mislead people that the performance of each page is the same, actually it is not. Renice test setting and idea: Take a new 3D Nand Flash for example, choose 1024 (03FF) Block, Program/Erase for 1000 times. The more stable the graph shows, the more reliable the Nand Flash is, if the graph floats drastically, the worse stability of the Nand flash. It looks stable when Page0 program A not ideal Lower Page test result as following. A not ideal Upper Page test result as following. Conclusion: the...
Read more