Power On Time/Samsung T3: 15,720 hours Mac Mini 2018: 202 hoursĭriveDX rates the T3 Lifetime Left Indicator at 72%/Mac Mini 100% (The T3 is now used for a bootable clone of the 2018 Mini.) It is interesting to see the difference of the "Power On Time" between the PCIe/NVMe SSD in my 2018 8GB RAM Mac Mini (8 months use) and a Samsung T3 external SSD, the latter having been used for around 3 years as the boot drive for a 2012 16GB RAM Mac Mini. Detailed explanations of the various health parameters are directly accessible from the main app window. The GUI is much easier to deal with than using Terminal commands. I prefer the convenience when monitoring multiple internal/external drives. Here is a copy of a related post I made on the MacRumors forum: ![]() I've been using DriveDX which is a GUI for smartmontools. ![]() OWC tech support recently informed me that only one of their enclosures supports S.M.A.R.T. Many external enclosures do not support S.M.A.R.T. data reliability varies widely depending on the type of drive and whether it is internal or external. Activity Monitor > Disk shows kernel_task and Firefox at top of bytes written. My machine is only using 62.5 MB of swap space, in other words 0.061 GB. ![]() Because I've heard that SMART is not entirely accurate with HDD, and even less so with SSD, it didn't seem worthwhile. ![]() I was going to install smartmontools as suggested in the Macrumors thread, but it would have taken 4 hours to install Xcode first. Is this a new level of built-in redundancy, or is it a first-gen issue that can be resolved? I'm hoping to get a MBPro 14" later this year but will be watching this story with interest. Hmm, not a huge techie on an issue like this, but thought it would be worth posting about.
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