Intel Optane SSD 905P Series are the fastest SSDs ever

[DanceswithUnix]

We generally recommend customer use the high endurance devices for our cache layer - Generally in the 10DWPD range , though the optane devices seem to be rated for a huge endurance ( up to 30DWPD or 41Petabytes Written over a 5 year period! ) The only time see SSD's go pop is when they have cheaped out and bought a read intensive SSD for it ( one of the reasons we mirror our cache drives so that you can swap them out should the wear level get a bit high )

That sounds fair enough for a tiered storage layer. The cache on a raid controller is somewhat concentrated though, more of a journal so all writes to all drives would go through that area which is why write speed is critical (the controller can't say a block is written until it is safely written *somewhere*, ideally to redundant controllers). For a PC RAID card it would work, but my time in enterprise storage makes me think in terms of the demands of a petabyte of disks being hit by thousands of users. In fairness that probably wasn't what was meant by our noodly monarch

[Moby-Dick]

Our use case is slightly different in that each cache device would only have a max of about 30TB of raw storage that we would be writing through to ( we use the SSD as write cache as well as read cache / metadata store ) on an individual HCI node , so the writes are probably a little less concentrated and ultimately the rate determining step for throughput would be speed at which we could de-stage to the capacity tier in a sustained write situation. The burst performance is very much dependant on the speed of that write cache though - going from SATA to NVMe SSD's gave a significant boost!

[kingpotnoodle]

SSD durability hasn't been an issue for years. The increases in capacity has helped, spreading the wear over lots more flash.

... and with my next breath I have to say that if Intel had managed the durability they originally claimed then that might be a flyer, but with the very much reduced durability their actual products get I don't think you can get a datacenter friendly 5 year lifespan if you are writing to the stuff constantly as a cache medium.

Optane drives have at least equivalent endurance to the best NAND based drives of similar size but it's not just about that I find them excellent for caches mainly because of the lower latency and consistent performance at lower queue depths.

[DanceswithUnix]

Optane drives have at least equivalent endurance to the best NAND based drives of similar size but it's not just about that I find them excellent for caches mainly because of the lower latency and consistent performance at lower queue depths.

If you have a use case other than benchmarks that gets high queue depths out of a standard SSD then I'm impressed

[Moby-Dick]

one persons edge case is another ones line of business I guess

[ETR316]

Going to buy a 480GB version for sure.

[Ttaskmaster]

But.... RGB!
How come no hatred here?

I'm not fussed, myself, as this very thing would work rather well in my new build.