SSDs have gradually become popular, the choice to buy an SSD is also increasing and you already know all the parameters on an SSD or not. What does DWPD mean? What is TBW, did you know? A very simple way to become an expert in choosing an SSD is to regularly follow articles about SSDs on Software such as this one.
DWPD or TBW are both parameters that are not introduced much when we choose an SSD hard drive, but this is the most important parameter and it indicates how long the endurance of that SSD is. However, very few buyers pay attention to what DWPD is, what TWB is used for and what it has to do with SSDs.
What does DWPD mean? How to calculate the number of writes to a disk per day on an SSD
What does DWPD mean?
DWPD stands for Drive Writes Per Day, which translates to the number of writes to the drive per day. This means using the TBW specification of the drive to calculate how much capacity can be written per day on a drive based on the warranty period of the product.
DWPD and TBW are closely related, these 2 parameters will help you calculate the life of your SSD relatively accurately.
How to calculate the number of writes to a disk per day on an SSD
To be able to calculate the number of writes to the drive per day on an SSD we need to know the TBW number of an SSD, the number of years the manufacturer warranted it and the capacity of that hard drive.
The formula will be:
DWPD = (TBW * 1000) / (365 * Years of warranty * SSD disk space).
For example: I have a 1.8 TB (1800 GB) Kingston SSD with a 5-year or 1432 TBW warranty so the alternative to the formula would be:
DWPD = (1432 * 1000) / (265 * 5 * 1800 GB).
And the result will be 0.43 (about 774 GB), which is 43% of the capacity of the 1800 GB hard drive
What does this parameter mean?
So what does 43% equivalent to 774 GB mean, you can simply understand if your TBW write data is 774 GB per day , you can use the above hard drive for 5 years straight. But in fact, with our personal needs only fluctuating around 40-60 gb / day , it is a long time before your SSD fails if using the above type.
Through the above article, we have a better understanding of what DWPD is as well as how to calculate DWPD, an important parameter that few people pay attention to on SSDs. Also in the article you see that there is always an acronym accompanying DWPD is TBW, so what is TBW and how specific is its function. Please refer to the article immediately
to also learn more about this issue.