All the hype around Apple must have something to do with the quality of their products, it cannot be clever marketing and cool design alone. Example: Power Consumption This weekend […] Maybe or not, surveillance does mean your disks are constantly getting data writen, which changes the chances of spin down to about 0. Which means your "idle" would include spinning disks, which is significant.

don't preclude the chance to go with 10Gb/s in the future (one SFP+ port would be very good or at least a PCI Express solution as in the other system) TrueNAS Scale for beginners: https://www.truenas.com/community/resources/welcome-to-truenas-scale-beginners-intro.208/ There have been great improvements in idle power consumption in the past years. As an example, c’t published a build for an 11 Watt PC in December 2016. This i7-8700K build, unfortunately, is not as efficient. The best I observed is a little more than 36 Watts. The typical idle power consumption is around 40 Watts. A modern PC’s power consumption is highly volatile, changing many times per second depending on the workload. The most important value, however, is idle power consumption, because no matter how furiously you work, your machine will be idling a large part of the time. Each of several items in a list, preceded by a bullet symbol for emphasis. For easy access to this data, refer to the "BulletPoints" tag in XML or JSON.I blame Intel’s Z370 chipset, the only chipset currently available for Intel’s 8th generation (Coffee Lake) CPUs. According to other people’s measurements, the GPU consumes a bit less than 10 Watts when idle. Interestingly, it does not matter whether you connect one or two (4K) displays to the GPU. There is not even a significant change in power consumption if you connect a single display to the mainboard’s Intel graphics instead. Update 2018-08-24: with the Fujitsu D3643-H there is now a board available that offers two version 1.2 DisplayPorts (up to 4K resolution at 60 Hz). As with most Fujitsu mainboards, the D3643-H is optimized for low power consumption and high reliability. Wi-Fi and Bluetooth

So simply put: If you keep writing constantly, the disks never idle and thus never reach a chance to spin down. Regardless of how spindown itself is handled... (For spindown, a disk needs to be idle. If no disk ever idles, it wouldn't spin down regardless of the spindown setting). A: I expect the max 22 harddrives to at most consume 480W at spinup (thats a worst case), which is a little above the recommended load but not too bad. PSU is sized on average expected peak load, not absolute maximum expected load. Spindown is per drive setting... But keep in mind that all drives are mostly writen at once* and the times for spindown (regardless of how low its set) only starts counting down when a drive is on standby.A “gaming” mainboard would not have been my natural choice. Neither do I really need a dedicated GPU. Unfortunately, none of the currently available mainboards for Intel’s 8th generation (Coffee Lake) CPUs are equipped with two DisplayPorts. As we will see below, this choice of mainboard and GPU negatively affects power consumption. That will kill your PSU. Supermicro's *SMALL* spec for a 24-bay chassis is the 920 watt dual module supply, which is not sufficient to guarantee brownout-free spinup when one of the PSU modules is removed. If you need Wi-Fi and Bluetooth, I can recommend the Asus PCIe network adapter AC2100 (PCE-AC58BT). It works out of the box without the need to install anything from the CD (!) I found in the box. Just connect the external antenna (excellent signal strength!) and the internal USB cable (required for Bluetooth). This article explains how to set up Prometheus, Node Exporter, and cAdvisor with automatic HTTPS certificates (via Caddy) and OAuth single sign-on (via Authelia).

ZIL and SLOG: https://www.truenas.com/community/threads/some-insights-into-slog-zil-with-zfs-on-freenas.13633/ Motherboard manufacturer with highest power efficiency (and preferably server grade): Fujitsu, now rebranded Kontron Power supplies: https://www.truenas.com/community/resources/proper-power-supply-sizing-guidance.39/ Multi-thread performance, while probably overrated, is not unimportant. There are quite a few applications out there that do use multiple threads at least part of the time to speed things up. reading various official hardware sizing guides and user builds I find it hard to decide how much CPU horsepower I'll need for my use-case.

I knew I needed a faster CPU for zstd and wanted more disk-slots to use DRaid once it launches. It's a SCALE focused build, with enough processing power to decently run some containers/VM's as well as provide some storage The need for Space I have currently won't ever exceed 10TB so I thought about getting 2 4-drive RAIDZ1 vdevs resulting in a total capacity of 24TiB (with 20% free space in mind). Maybe I'll just do 1 vdev resulting in 12TiB. I can still expand later on. Virtualization: https://www.truenas.com/community/t...ide-to-not-completely-losing-your-data.12714/

If you need Bluetooth only (without Wi-Fi), take a look at the Hama Bluetooth USB adapter 4.0 + EDR. Assembling the Components I do not have the equipment to measure noise emissions, but I can say that the machine is nearly completely silent. Only when there is no ambient noise at all can a very unobtrusive mid-frequency ventilator humming be heard. This does not even change during prolonged periods of high load. CPU Performance First thing I was thinking about was the chassis. Considering I don't live in the USA right now I need to buy something that can be shipped to Europe someway. I found some good candidates, even from old posts on other forums like this on LTT, and at the end I think I will go with the Node 304.Load of disks: thinking about 12-18 2.5" drives + 3 SSD's for Special allocation classes (coming in TrueNAS core) and 2 SSD's for FreeNAS.