Author Topic: SSD Reliability in the Real World  (Read 1179 times)

Offline Zeus

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SSD Reliability in the Real World
« on: February 28, 2016, 10:33:12 PM »
Datacenters are a great source when it comes to testing drive reliability. SSDs are still relatively new and there are a lot of different issues related to solid state rather than mechanical drives. Google has put together a bit of a writeup regarding issues they've encountered with thousands of drives including MLC, eMLC and SLC drives. Their conclusions are worth noting.

   One of the major reasons that "enterprise" SSDs are more expensive is due to greater over-provisioning. SSDs are over-provisioned for two main reasons: to allow for ample bad block replacement caused by flash wearout; and, to ensure that garbage collection does not cause write slowdowns.Source: ZDNet

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