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Mise à jour de 'article_home'

alex
2022-12-12 09:12:19 +00:00
parent 7c8912c1dc
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article_home.md

@@ -76,7 +76,7 @@ All in all, this server is rather under-used at 8% CPU usage and under 3 GiB of
### Running costs ### Running costs
Price for this machine is 32 € / month. I rent this machine for 32 € / month.
## Home NAS ## Home NAS
### Specs ### Specs
@@ -90,7 +90,7 @@ I already have had to change failing disks which was a satisfying experience.
I really enjoy the 3 disks + 1 parity setup, nice balance between disk loss and security. I really enjoy the 3 disks + 1 parity setup, nice balance between disk loss and security.
### usage ### Usage
![qnap usage](https://gitea.micouleau.net/alex/homelab-project/raw/branch/master/htop-qnap.png) ![qnap usage](https://gitea.micouleau.net/alex/homelab-project/raw/branch/master/htop-qnap.png)
@@ -105,11 +105,11 @@ Here is the obeserved usage of this NAS :
Power consumptions benchmarks are easy to find over the web for the TS 451+. Power consumptions benchmarks are easy to find over the web for the TS 451+.
Taking into account my average usage, I recon my TS 451+ consumption to average 30W which would amount to 5.58 $ / year in electricity. Taking into account my average usage, I recon my TS 451+ consumption to average 30W which would amount to 40€ / year in electricity.
Since the NAS is now old, its acquisition cost is out of the scope, but its safe to say that I'll need to replace one of its disk every 18 months. The last disk I bought was 60€ so 40€/year. Since the NAS is now old, its acquisition cost is out of the scope, but its safe to say that I'll need to replace one of its disk every 18 months. The last disk I bought was 60€ so 40€/year.
The monthly cost of this NAS thus amounts to 3.75€/month The monthly cost of this NAS thus amounts to 6.67€/month
## Conclusions ## Conclusions
<b>For running all my services, the two machines consume around : <b>For running all my services, the two machines consume around :
@@ -117,7 +117,7 @@ The monthly cost of this NAS thus amounts to 3.75€/month
* less than 8 GiB of RAM * less than 8 GiB of RAM
* around 850 GiB of disk space * around 850 GiB of disk space
In terms of monthly costs we're set at around 36 € / month In terms of monthly costs we're set at around 39 € / month
</b> </b>
# Ebay browsing # Ebay browsing
@@ -175,13 +175,15 @@ I think I could run this setup as is for at least four years, given I replace 1
### Running costs / OpEx ### Running costs / OpEx
As the server will most probably be as idle as the existing setup, I envision it will consume around 180 to 200W. As the server will most probably be as idle as the existing setup, I envision it will consume around 180 to 200W.
At the current prices of energy in my area the yearly cost of energy would amount to around 35€ / year or 3 € /month At the current prices of energy in my area the yearly cost of energy would amount to around 235 € / year or 20 € /month
### Costs verdict ### Costs verdict
**I would drop down from 36 € per month to 11.** a discount of around 70 %. I would drop down from 36 € per month to 28 € a discount of around 33 % for 4 times the power and for times the RAM. Not bad.
This comparison is not really fair. Let's redo it taking the assumption I would get the same ATOM processor and same power consumption. My energy cost would fall to 2,5€/month, my full cost would be of around 11 € /month providing a discount of almost 70% vs Public clouds.
Break even is also very fast as I'll have returned my investment by the 12th month.