might be discontinued, but there is very little out there that competes on endurance. The only alternatives are the dram/super capcitor type drives when it comes to write endurance and they cost a lot more.
I’ll be using the optanes for the zfs slog (separate intent log) which is very write intensive but almost never read - the only time it is read is of the server crashes or the power is interrupted.
For the rest of the drives, the storage server will have sas3 drives, the hypervisor server will have all nvme. SSD’s are unfortunately still far to expensive for large storage.
BTW, there is nothing wrong with the optane products, intel just screwed up and gave up. They ended up with a ton of inventory and there are some good deals to be had.