>>52470567 In terms of physical reliability, SSDs win hands down, since you're not likely to damage one beyond repair unless you blow it up, while HDDs designed specifically for surviving impacts can only take a three foot fall on hard floor. In terms or electrical reliability, SSDs are more vulnerable to power surges since the memory chips are directly wired to the controller; with an HDD you can always replace a burnt controller, but the platters will never get ruined from electricity. In terms of data retention, HDDs are better for long-term storage since data does not degrade over time, while SSDs need to be plugged into the system or risk losing data after a few months. In terms of MTBF, it depends on write intensity, since SSDs are rated in terms of write cycles, while HDDs are rated in terms of hours running and do not degrade with writes.
>>52471064 I'm always going to be powering on the ssd in my computer everyday. Physcial reliablilty, I'm not going to be moving my computer at all, electrical reliablilty is a con for me when using an ssd
Theoretical MLC SSD lifetime is usually nowhere near the much lower practical lifetime. I would not use MLC SSDs for any data that would be hard/tedious to reinstall, at least not in less than a RAID 1 setup.
Hard disks and SSDs alike can spontaneously fail, even if the drive health indicators are all good. More reliable SLC SSDs are no longer commercially viable, because it's cheaper and faster for practically the same reliability to just put multiple MLC drives in a redundant array.
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