Accelerating Flash for a Competitive Edge in the Cloud and Beyond.This article is part of Flash Memory Summit 2020 Sessions from Day Two For one, endurance, you can monitor it with smart – well, I'll talk a little bit about it when I show the smart logs - but you have a something called percent used in NVMe, which is basically the gas gauge that shows what percentage of the endurance you've used and you also have available spares and reserve spares, that's part of the standard NVMe smart log where you can monitor endurance. And if you think about things where most people think SSD failures happen from endurance or hardware failures, but actually, if you look at this, this is a very, very small percentage of actual failures. So, one of the things, you know this is very important for monitoring the health of SSDs because the increased prevalence, obviously, is where to look for as far as what the likely candidate of a failure is. So, the first thing is really about how SSDs fail. I used to run a validation team at Intel, so, obviously, I know a lot of the failure mechanisms of SSDs in general.Ġ1:04 S1: Two, I've helped kind of work and refine and define a lot of the features in NVMe today based off lots of customer feedback, based off all the partners that are part of NVM Express kind of contributing to the overall specification as far as trying to accomplish these goals. So, without further ado, I'm going to go walk you guys through some of the interesting things that I think, that I see, of monitoring the health of NVMe SSDs, just from experience.

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