A few more than one, but it has been a lot less than when we were dealing with spinner. I think I requested about one or two replacements a year, a far cry from the one a week I was doing before.
We didn’t replace all servers at once, it was progressive, therefore due to availability the models we used changed over time.
Our first batch of all nvme machines had SSDPE2KX080T8, they became harder to source and we moved to SSDPF2KX076T1.
With Intel no longer in the ssd business I believe we have some Micron MTFDKCC7T6TGH and MTFDKCC30T7TGR. And as mentioned in the blog post we've recently purchased some Solidigm D5-P5336 which are 61TB monsters.
Here's a fun related story. Our supplier had so much trouble finding SSDPE2KX080T8 that when we had exhausted our spares, I had to sync everything off a machine, tear it down and pull its drives for spares and rebuild it with the smaller SSDPF2KX076T1. Then we had lots of spares
