Today's Hard|Forum Post
Today's Hard|Forum Post

Saturday February 27, 2016

SSD Reliability In The Real World

There is a new paper out that offers insight into how SSDs fare. One major conclusion is that age has a much higher effect on an SSD than usage.

Two standout conclusions from the study. First, that MLC drives are as reliable as the more costly SLC "enterprise" drives. This mirrors hard drive experience, where consumer SATA drives have been found to be as reliable as expensive SAS and Fibre Channel drives. The paper's second major conclusion, that age, not use, correlates with increasing error rates, means that over-provisioning for fear of flash wearout is not needed. None of the drives in the study came anywhere near their write limits, even the 3,000 writes specified for the MLC drives.