Some refer to it as the built-in “time of death”, which is rather tragic, but also an unavoidable fact of modern computing. This has long been a challenge for manufacturers for all the speed, efficiency and silence of SSDs, they do have a limited life span. This is concerning, because that TBW figure is essentially an indication of how long a drive will last.Įvery SSD has a maximum TBW value which gradually erodes the drive’s efficiency the closer you approach it. In layman’s terms, this means that under particularly heavy load, M1 Macs are spending far too much time writing to their SSDs.
“The most severe cases have “consumed” about 10-13% of the maximum warrantable TBW value of the SSDs (given their capacity & using values for equivalent market-available NVMe drives).” “Some more professional users of the new M1 Macbooks are experiencing extremely high drive writes over relatively short time. The iMore article quotes a posting on the LTT forums. Should we be worried? To find out, I decided to run some tests (yeah, I know – this is Mr ‘I Don’t Do Benchmarks’ talking here). Relating to the TBW (total bytes written) figure, the findings suggest that, under heavy use, some M1 machines won’t even last half a year.
Mac ssd health test skin#
In short, there are definitely things Apple can do to improve the next Mac mini – in whatever form that takes.īut it appears there might be a far bigger problem lurking beneath the skin of that aluminium casing.Īccording to iMore, some M1 Mac owners have received rather worrying health readings from their SSDs. As wonderful as my M1 Mac mini is, it isn’t without its problems.įor instance, there’s the much publicised Bluetooth issues (which are largely fixed following macOS 11.2), and the distinct lack of ports.
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