Bramblethorn
Sleep-deprived
- Joined
- Feb 16, 2012
- Posts
- 16,739
Jesus 'n Jim have an on-line SSD lifespan calculator (it was mostly Jim who made it - Jesus was in charge of the pizzas) suitable for what-if games.
By using the default values (I can't be bothered to look up the specs on my own SSD right now) for a 64 Gb SSD operating 8 hours a day 5 days a week as system disk, the estimated lifespan of the drive is 3 years and 7 months...
But if we replace the SSD with a larger one - say 250 Gb - and keep employing the same usage pattern we suddenly have a lifespan in excess of 14 years...
...and if we go all out and invest in 2 Tb worth of SSD we can expect the drive to outlive your kids...
I think this illustrates well the importance of size - not only when having sex but also when choosing the right SSD. Because of the wear-leveling, there is a direct correlation between how full the disk is and how long it lasts. Or to put it simple - if you buy one twice the size of what you need, it'll last you twice as long.
Just to complicate things... storage costs tend to decrease over time. So if the smaller disk is enough to last you a few years, you may do better to save the money and replace it down the road instead of buying big right away.
I'm too lazy to go research the numbers on a Sunday morning, but I seem to recall a figure that SSD storage costs were going down by about 7% a year. Let's say $1/GB in today's money, so... you could pay $256 today for a 256-GB drive that's going to last you 14 years 6 months.
Or you could buy a 64-GB drive today for $64, and then in 3 years 7 months replace it when drives cost about 77% of what they do today. If you buy a 256-GB drive then, you'd expect to pay about $197 at that time. That's a total of $261, and once you factor in inflation/interest rates, it's probably cheaper than buying the 256-GB drive today. Plus, you then have a brand-new 256-GB drive instead of one with three years wear on it.
Of course, this ignores cost and inconvenience of switching drives, which might affect the decision.