I bet you could setup your drives to fail in a set pattern. Lets say you had 4 drives in a RAID-10. If they were all fresh, swap out the first 2 drives when t

I bet you could setup your drives to fail in a set pattern. Lets say you had 4 drives in a RAID-10. If they were all fresh, swap out the first 2 drives when they are at 50% wear... then on you could swap them out back and forth as they approach 100% wear. Since they lifespan of some of the drives (Intel and Samsung I believe) is reported in the SMART data, you could easily do this. SSD drives with SLC memory (enterprise SSD) have 100,000 P/E cycles, so they should last a while unless you are writing just a massive amount of data. Anandtech had a nice little writeup about SLC vs MLC vs TLC memory a little bit ago: http://www.anandtech.com/show/6459/samsung-ssd-840-testing-the-endurance-of-tlc-nand http://www.anandtech.com/show/6459/samsung-ssd-840-testing-t...