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While each node of a server farm of these can be relatively cheap by enterprise budgets, an entire cluster of these machines is not (at $200k+ that’s the budget
by devonkim 7y ago
While each node of a server farm of these can be relatively cheap by enterprise budgets, an entire cluster of these machines is not (at $200k+ that’s the budget for an FTE, after all). Which is why I’d want to check if an Optane drive could be a strong consideration to shave some costs off for a reasonable trade-off in performance. Not sure if 10+ TB of Optane is viable enough to be at least an order of magnitude larger than the RAM capacity.
Also, 1.5 TB RAM became somewhat commonplace around 2014-ish. LinkedIn had to have Dell custom build them a 1 TB RAM machine around 2009. So 10 years later for the same build to be passé is fully reasonable when a lot of the market is doing massive or very latency sensitive graph calculations that won’t accept the variances of distributed algorithms.
- zamadatix 7y agoLast I checked Optane still cost more than RAM up to about 2 TB/server (dimms or drives). It does scale significantly higher in drive form though.
- devonkim 7y agoOptane is at $5k for a 1.5 TB drive while the OP quotes $18k for 1.5 TB of RAM. https://www.intel.com/content/www/us/en/products/memory-storage/solid-state-drives/data-center-ssds/optane-dc-ssd-series/optane-dc-p4800x-series.html https://www.intel.com/content/www/us/en/products/memory-stor... Being able to reach 12 TB+ with something like Optane is much more likely than with RDIMMs though, and memory latencies would probably get insane enough that Optane would start looking viable anyway.