Comment Wouldn't buy (Score 2) 65
And
Assume PCIex4 v5.0 for the interface. That's a theoretical 15.75GB/sec. To read this drive sequentially would take 4.25 hours.
This is so slow it's absolutely useless for AI. Assume for a moment I loaded 8 of these into a 1u chassis. 800Gb XDR InfiniBand would be too slow, a double link would work. But you would be better off building half-U trays with four drives and an 800Gb link.
That said, let's say you had half a rack of that. That would be 48x245TB or about 12PB. And remember this is performance storage, not reliable storage. Everything here should be treated as entirely volatile... it's just cheap/slow RAM, it's not bad.
I think overall, I would architect a similar system on 64TB sleds because with the exception of rack space and power (and the drives use no power next to GPUs), 64TB drives destroy 245TB drives in every way.
Once we hit PCIe v9.0 or so and 4Tb Ethernet or InfiniBand, then 245TB will start making sense.
If Micron wanted a serious product, they would have dropped U.2 in favor of Ethernet or InfiniBand.