3 ms·
Absolutely an important consideration, and it certainly depends on the use case. The IOPS also isn't remotely as high as the larger models or a ram drive (thoug
by xoa 10y ago
Absolutely an important consideration, and it certainly depends on the use case. The IOPS also isn't remotely as high as the larger models or a ram drive (though SLOGs can be striped for more). But it's $44/$77 whereas the P4800X starts at ~$1500 and something like the DDRdrive X1 (4GB RAM/4GB SLC NAND/power backing) is ~$2k. For a lot of individual applications (and remember, sync behavior can be set per dataset and SLOGs are assigned per pool) even the limited write endurance will be sufficient for a significant period of time, and even if these initial Optanes were burned through within a single year it could still be dramatically more cost effective: at these prices we're talking decade(s) of yearly replacements before equalling the cost of one higher end drive. Also consider where we are on the development curve for this tech. This is effectively 1.0 of XPoint technology, so it's reasonable to expect significant improvements in capacity/$, performance, and so on over the next few years, which in turn means it may be desirable to cycle them relatively fast anyway.
What I had in mind wasn't that these would be replacements for existing solutions used for high sustained intensity applications directly making money. Those are covered by ram drives or striped SLC already (and perhaps the P4800X series soon). I was more thinking the Optane Memory might provide a solid route for experimentation by a new class of users given the capex of a few pizzas. A lot those cases are going to be relatively low sustained intensity, but with burst performance still desirable. Heck, for forty someodd bucks some might go for it just to do some profiling and get a feel for what a separate ZIL would do for them at all.
If anything a significant limiting factor right now may simply be the relative availability/preciousness of M.2 slots in deployed home/soho appliances, servers and workstations.
- loeg 10y agoYep, those are all good points. Thanks for sharing your thoughts :-).