Comment on Best HDD/SSD for local media hosting
czardestructo@lemmy.world 1 day ago
Does no one care about power consumption? Mechanical disks use, in my experience, 7-15w all day all the time just idling. If you live in a high energy cost area the ROI on going SSD can be as low as 3-4 years. If you can afford it, splurge for SSD. I spent ~$800 on two 8tb SSDs and I’m very happy with the choice.
Power costs would have to be bonkers for it to matter.
8TB NAS HDDs are <$200, so even if it uses 15W vs 3W, that’s 12W difference, or 8-9kWh/month. If you pay a ridiculous $0.40/kWh, that’s $40/year. That means the SSDs would pay for themselves after ~15 years, and I’m guessing you’d replace/upgrade them long before then.
But NAS drives use a lot less than 15W, usually around 4-6W idle. So the payoff period is probably closer to 30 years…
My SSDs use negligible power at idle, I only noticed a 1w increase when I installed two. Almost ‘free’. Also your 0.14kwh is almost certainly just the cost to generate the power minus the delivery fees. Where I live the delivery fees double my true per kWh cost. Double check your bill and divide your monthly consumption by your monthly payment to find the real cost.
Here’s my current bill:
And here’s my previous bill (all summer usage w/ AC and whatnot):
That’s why I gave the $0.12-0.15/kWh range, because it depends on time of year, total usage, etc. It’ll probably be closer to $0.12/kWh next month since we’d use hardly any electricity (we use natural gas for heat).
Thats friggin bananas. Do you live somewhere with lots of hydro power? Your cost is less than 1/3 mine…
Grippler@feddit.dk 1 day ago
2 x 8tb HDDs is roughly $200USD
I don’t know what kind of electricity prices you’re paying, but to hit a 3 year ROI on your SSDs, you’re paying at least $1.5USD/kWh, assuming the full 15W consumption of the HDDs and assuming negligible power.consumption from the SSDs.
czardestructo@lemmy.world 22 hours ago
When I bought them 2 years ago power in MA was $0.46 per kWh, this included transmission costs and all the other fees. 15W cost me $4.80 a month, so $57.6 a year and $230 over 4 years. At the time 14TB mechanical disks were about $300 so it was about a $270 ‘premium’ for solid state over mechanical so I exaggerated the ROI, but to me the 2x price premium was worth it for silence and no latency on retrieving my data. So in summary the ROI for me was more like 8 years, ignoring the many advantages of SSD.