SSD Write Endurance 25nm Vs 34nm

[Vapor]

C300 evening update, plus a new chart to add to the mix.

41.787TiB, 86MWI, 702 P/E cycles (raw wear indicator), all MD5 okay, 81.7MiB/sec




New chart!

Approximate Write Amplification



Using the normalized writes (total GiB written / total NAND capacity), raw wear indicators (Samsung and Crucials), and raw wear inferences for Intel ( (100-MWI) x 50 / normalized writes ), I came up with a chart for approximate write amplification during testing. Not sure how useful it is, ultimately, but it seems interesting

Only value I'm unsure of is the X25-V, it may have 10k cycle NAND, in which case it's WA would be 2x what is shown as I calculated with the assumption of 5k cycle NAND.

[johnw]

Only value I'm unsure of is the X25-V, it may have 10k cycle NAND, in which case it's WA would be 2x what is shown as I calculated with the assumption of 5k cycle NAND.

Also, the Samsung is a guess, since we are not certain that SMART attribute 177 is actually erase cycles on the flash. I think it probably is, but if it gets to 20,000 and the SSD is still going fine, I will start to have more doubts....