3 ms·
Assume $11.88/TB [1], 5W per 4TB disk, and $0.2/kWh. We’re talking $1.19mm NRC + $18.3k MRC. With a 9% discount rate, that’s only $3.63 million dollars in pres
by NavinF 5y ago
Assume $11.88/TB [1], 5W per 4TB disk, and $0.2/kWh. We’re talking $1.19mm NRC + $18.3k MRC.
With a 9% discount rate, that’s only $3.63 million dollars in present value to pay for infinity months.
Of course there are other costs (and cheaper more efficient disks; and cheaper power; and your discount might be less aggressive; and server aren’t free tho you only need like 1 server for 100 disks with SAS expanders since most data is never read; and maintenance), but the $200 million number you got seems very reasonable to me.
1: https://diskprices.com/ https://diskprices.com/
- texasbigdata 5y agoNo humans? :)
- NavinF 5y agoAh I was only thinking of marginal costs. I’m pretty sure the $2/GB figure is the cost of adding a little more data to the IA, not the total cost.