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Synology DS2422+ NAS – Power Consumption Tests and the Cost

30 novembre 2022 à 09:00

How Much Electricity Does A Synology DS2422+ NAS Use and How Much Does it Cost to run 24×7?

Let’s talk BIG STORAGE! Have you been considering the Synology DS2422+ NAS for your business storage? Alongside having an impressive 12 bays that you can populate with HDDs upto 22TB in scale (at the time of writing), it also features a great internal hardware architecture that is designed to be both efficient AND powerful when it needs to be. But, what about if you have this device on all day, every day! How much is the DS2422+ larger scale NAS going to consume in energy, your energy bill size and ultimately how much is this going to cost you to run! In this energy-aware climate, it can be appreciated that a NAS drive (a 24×7 appliance) seemingly has its cost to the end user in terms of electricity as something of a vague number. With so many kinds of NAS available in the market, featuring a mix of CPUs, PSUs, Bays and utilities, PLUS the wide range of HDD/SSD drives in the market to choose from – there are just so many variables when trying to work out how much power your NAS drive is using and how much that is translating to in your monthly energy bill! So, today’s article is about working out how much electricity the popular Synology DS2422+ NAS and HAT5300 16TB HDDs (the recommended HDD series for this NAS) will consume, as well as how much that equals to you in £, $ or € per day, month and year! We tested the Synology NAS system, connected them to an energy monitor and worked out how much power they used in full active use and in idle. Let’s begin.

The Synology DS2422+ NAS
Current Price/Availability on Amazon –$1899
The HAT5300 16TB HDD (x4)
Current Price/Availability on Amazon –$599
AMD Ryzen V1500B CPU, 4-Core 2.2hz Celeron CPU
2GB DDR4 Memory, 4GbE
16 Terabyte Capacity – SATA 3.5″ Form Factor
7200RPM – 512MB Cache – 8 Platters

NAS Power Use Test Setup

Choosing the appropriate NAS drive for these tests was always going to be tough. I DO intend on repeating these tests with several different NAS drives after this in some follow-up articles (the larger article that I will be adding to can be found HERE), but wanted these first few tests to be focused on one of the most POPULAR NAS setups (and the DS2422+ is still one of the most popular Synology NAS the brand has ever produced and the HAT5300 16TB HDDs, as well as identifying the difference between using newer gen CPUs and Larger drives vs using older generation devices and smaller capacity media. This will involve 2x tests on each NAS+Media configuration. Here is a breakdown of the hardware configurations and test architectures:

  • Synology DS2422+ NAS, AMD CPU+4GB Memory Setup over 1GbE
  • 4x HAT5300 16TB (RAID5)
  • During ‘ACTIVE’ 24hr Tests, the NAS was prevented from going into standby/idle. 1 VM running, 1-Core and 1GB Memory, 2x IP Cameras recording non-stop, drive S.M.A.R.T tests scheduled to be hourly
  • During IDLE 24hr Tests, the VM was deleted, VM and Surveillance Software disabled, ALL S.M.A.R.T tests disabled and network cable (1GbE) disconnected.
  • The first day of operation (which includes initialization and RAID creation) not counted (but visible at the start of the graph).
  • Power was monitored with a GOSUND SMART KIT Smart Plug, Mini 13A – Find HERE

The initial 24 hours (used for system initialization and RAID configuration) were NOT included in the power usage monitoring, as although they appear on the graph they are one-off single-event scenarios. Each test (Active vs Idle) was conducted for 24hrs and the overall electricity usage was displayed in kw (kilowatt). But what is the difference between Active and Idle activity? Why does it matter?

What is the Difference Between a NAS Drive ‘Active’ and in ‘IDLE / Standby’?

Although a NAS is designed to be in operation 24×7 and is consuming electricity when running, the actual reality of this and the extent to which it is consuming it is actually alot more nuanced. Most home users who have a NAS system will use the NAS directly for a significant;y smaller portion of time per day than it is actually powered on for. Perhaps to stream a movie or a couple of TV episodes, run a daily backup, have a couple of cameras in/outside their home that are sending recordings (or more likely just alerts and associated captures) to the NAS and that is about it. They will periodically do more than these, maybe a VM, more sophisticated backup or use some of the other services ad hoc, but the result is that in most domestic/bog standard home scenarios, a NAS will be switched internally to Idle/Standby after no pro-active use quite quickly and spend 80-90% of the time in low power modes. Business users might well be using the system 24×7 for sync’d tasks and on-going camera recording, but even then, this will be a lower %  of system resources in use. So, in order to find a comparable and relative means to study the electricity use of a NAS and it’s cost, I have conducted two tests per NAS+HDD configuration. The first, a 24 Hour Active test, with the system using a decent % of it’s CPU+Memory, a swell as the HDDs not being given the chance to switch to Idle/Standy (by constantly writing AND performing S.M.A.R.T tests hourly). The idle tests involve all of those apps, services and scheduled operations being cancelled and the network cable being disconnected from the NAS (for another 24hrs). From here we can work out the cost of an hour of power usage by either setup in high activity and near-zero activity. But how can we work out the COST of the electricity used by the NAS in that time period?

How Energy Costs in these NAS Tests were Calculated?

The results of the energy usage are then cross-referenced by ‘sust-it.net’ and calculations of the cost of the used electricity per day, month and year was calculated for the UK, U.S, Germany, Australia and Canada. Now, using a select energy tariff is much harder, as there are quite literally thousands of different energy providers globally, each with their own pricing on the cost of energy per ‘kWh’. So, I used the national average calculations that were provided by ‘sust-it’ for each of those areas. Some are clearly more up-to-date than others (i.e the United Kingdom Avg Energy cost tariff is dated October 2022, whereas the Canada’s average energy cost is from way back in March 2020), however, these will still provide a good basis for understanding what a NAS drive is going to cost you in electricity when it is in operation. The national tariff averages used in this article for each region are as follows:

UK: Energy Price (October 2022) electricity rate of 34.00 pence per kWh.

USA: Average (Feb 2022) electricity rate of 14.80 cents per kWh.

Germany: Average (June 2021) electricity rate of 31.93 Eurocents per kWh.

Australia: Average (March 2022) electricity rate of 23.59 cents per kWh.

Canada: Average (2020) electricity rate of 8.50 cents per kWh.

Source – https://www.sust-it.net

There are the rates that we will be using to calculate the running costs of the Synology NAS system (and more importantly its Drive setup and CPU usage).

Test – Synology DS2422+ NAS and 4x HAT5300 16TB Drives

I set the Synology DS2422+ NAS and HAT5300 16TB Hard drives up in the following configuration for the Active tests:

  • Synology DS2422+ NAS
  • HAT5300 16TB HDD, RAID 5
  • Surveillance Station 9 and 2x Reolink Dome IP Cameras (24hrs Active)
  • Synology Virtual Machine Manager, 1x Windows VM, 1 Core, 1GB Memory (24hrs Active)
  • Synology Storage Manager (DSM 7.1) and S.M.A.R.T Tests per Hour (24hr Active)
  • Reported Average power requirements of a HAT5300 16TB (Single):
    • 4W Standby/Idle
    • 7.63W Active

Then, 24hrs later, I disabled all these processes, disconnected the RJ45 LAN and let the NAS fall into idle/standby mode. The results were as follows:

The power that was used in the initialization of both the NAS and the drives in the RAID was NOT included in the respective Actie/Idle tests.

Synology DS2422+ and HAT5300 16TB HDD Test Results:

0.053333kW use per Hour in full access/use and 0.02625kW use per Hour in idle/standby:

1hr Active Use (KW) UK Power Use £ U.S Power Use $ Germany Power Use € Australia AU$ Canada CA$
Per Hour £0.02 0.0079 0.017 0.0126 0.0045
           
1hr Idle Use (KW) UK Power Use £ U.S Power Use $ Germany Power Use € Australia AU$ Canada CA$
Per Hour £0.01 0.0039 0.0084 0.0062 0.0022

Here are the results for 24 HOURS OF ACTIVITY (no standby time or drive hibernation)

24hr Active Use (KW) UK Power Use £ U.S Power Use $ Germany Power Use € Australia AU$ Canada CA$
Cost Per Day £0.43 0.1896 0.408 0.3024 0.108
Cost per Month 13.213 5.767 12.41 9.198 3.285
Cost Per Year 158.556 69.204 148.92 110.376 39.42

Here are the results for 24 HOURS OF IDLE/STANDBY with no system use and ethernet/network connection disconnected

24hr Idle Use (KW) UK Power Use £ U.S Power Use $ Germany Power Use € Australia AU$ Canada CA$
Cost Per Day £0.21 0.0936 0.2016 0.1488 0.0528
Cost per Month 6.497 2.847 6.132 4.526 1.606
Cost Per Year 77.964 34.164 73.584 54.312 19.272

So, what about if you were to only use the NAS at active use for around 25% of the day (i.e 6hrs of active with backups, multimedia, etc) and 75% of the day as idle (i.e 18hrs unused):

25%/75% Active/Idle Use:

6hr Active Use and 18hr Idle Use (KW) UK Power Use £ U.S Power Use $ Germany Power Use € Australia AU$ Canada CA$
Cost Per Day £0.27 0.1176 0.2532 0.1872 0.0666
Cost per Month 8.176 3.577 7.7015 5.694 2.02575
Cost Per Year 98.112 42.924 92.418 68.328 24.309

Now it is worth keeping in mind that the costs for each region have a notably different price per kW rate, so even after factoring in currency conversions between different units (eg Pounds vs Dollars), there is a significant degree of difference in the costs per day, month and year of the exact same NAS+HDD setup above. Stay tuned, check below to see if other NAS power tests have been published and recommended to you, or watch the video version of these tests (which goes into more detail on the current predicaments in the energy crisis facing many of us in 2022, 2023 and beyond.

VIDEO

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