Industrial & Military standard SSD

Firstly, let’s see the conclusion that Renice draw based on the test from Nand Flash test platform NFA100. 1, the P/E cycle of some Block up to 20,000 times in real test, though it said only 3,000 times in datasheet. 2, Each block is an independent individual, and the initial condition of each block is not exactly the same, even though they are the same process in the same production line. 3, No matter it’s original Nand Flash or non-original, they have the necessity of testing, the Nand Flash can be sorted and classified into different levels. 4, Though it is the same Nand Flash chip, the health condition of each Block is not the same 5, The real lifetime (P/E cycle) of Nand Flash may be far greater than its datasheet, only when test, it can play the greater value. 6, Deep understanding of the life performance of Nand Flash in different P/E stages can help better plan ECC. 7, For those who want to convert MLC mode to SLC at a certain stage, when to start ...

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