The biggest change to ssd's since 2009 is now there are ones that plug into a pcie slot.

The controllers are a lot smarter now, breaking the file into as many different pages on different banks as it can, so it can read it at blazing speed.

They are much wider inside as well, having far more than 40 controllers. (thats where the speed advantage comes from, one controller channel is slow. Think of it as raid on steroids.)

The pcie ones use compression for speed as well, and if you are saving something that can not be compressed, you loose most of the speed advantage right off the bat.

They suffer from the same page problems as the ones from 2009, there is no way around that on Nand flash. You can mask the problem, but it is still there by design.

They also get very hot and as you can imagine, heat is the enemy to electronics. Generating that much heat is a sure sign that they are not very efficient.

SSDs are nice when they work, great for speeding up a system, and a sure fire way to loose everything when they fail. When a hard drive goes bad, most of the time you can still recover the information. When an SSD goes bad, chances of recovering info are slim to none.

I used them in the past, and went back to ram drives. I can wait 15 more seconds for it to boot, knowing that it is going to boot. And a ram drive for temp/swap usage still outruns the fastest SSDs. You can also write to ram "billions and billions of times" borrowing Dr. Sagans famous line. You can write to an SSD Nand gate 10,000 times max. Chances are good that the Nand write limitation is not in the spec sheet for the SSD drive. But the limitation is there, and you will get to that limitation......

 

---

Some things are easy to explain, other things are not........ <- Store ->   <-Freebies->