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Most of the power draw is from the hdds. I have the same issue. If you want less power consumption. Invest in SSD or SSD and HDD hybrid where you store quick access files on SSD and rare access on hdd (then you can spin them down with timeout of , let’s say 30-60 min). This should save some energy
If you can figure out how to get a qnap to spin down its disks, please let me know lol. I've been searching for months and haven't found a reliable solution. I basically only need to access it once a day at MOST, so having the disks spinning away for like 99% of their life sucking down power is something I'd like to avoid. The problem seems to be that even with a perfectly clean slate, no services running, the system set up in their own RAID0 SSD pool, the HDD's, even with 0 bytes of data on them, are being pinged for access at least once a minute. I'm assuming it's some log being written to, but it's not anything visible in the file system, and I haven't been able to find any solution online, lots of people seem to have the same issue.
I'm tempted more and more every day to just grab one of those low-power embedded ITX boards and build up a custom rig. Other than the disk spinning constantly, the TS-462 does everything I need perfectly.
Wow, QNAPS don't spin down disks? Geez, what a crappy design choice. Thanks for that tidbit, I was considering one for my next NAS.
I have no idea if it's a QNAP-wide issue, or just some specific models, I haven't bothered to do that much research. I'm guessing that the discs WOULD spin down if you have that option selected if they weren't constantly being pinged a couple times a minute. That constant pinging is the part I can't seem to track down.
An excerpt from a post I was reading while researching this sums it up prettt well: "700 posts about spindown/sleep/standby not working in the QNAP HDD Spin Down Forum. No one seems to be able to resolve it. Qnap clearly couldn't care less."
The only solution that I've found that seems to work is to install some other operating system on it, which kind of defeats the purpose of buying a turn-key NAS, and is slightly outside my comfort zone right now. I just ordered a kill-a-watt, so I'll see how much power it's taking with/without drives and go from there if it's worth my time to dive into an OS swap, or building a custom rig.