Solid State Drives (SSDs) inside your Mac will wear out over time, but it can be difficult to tell when they've been damaged, which can lead to data loss.
Recently, there have been reports that Macspowered by Apple Silicon may experience premature SSD wear. The reason is unknown and so far Apple has not commented or released a fix for this issue.
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Excessive wear is never a good sign, and given that the M1-Macs are new, many may wonder what about older Mac models and what wear their SSDs may have suffered?
The wear and tear of an SSD is measured in TBW , or TeraBytes Written. These are numbers that manufacturers use to measure the lifespan of the hardware.
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Typically, a 250GB SSD will have a rating of 60 and 150TB, meaning that even at the lower end of that rating, to exceed that number in a year, you would have to write more than 100GB of data to that drive every day.
Manufacturers are now offering higher TBW levels, such as Samsung's 600TBW rating, backed by a 10-year warranty.
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If you want to know how worn out your SSD is, there is a way.
Download and install Homebrew or Drive DX.
Two indicators to check are the percentage of life used and the units of data written.
In any case, to be sure of your data, create backups, so as not to encounter problems.
