I have two Zen 30 switches and since I wrote that comment a week ago both have died. Zooz is blaming the failures on an installation error after 18 months of use! Instead static discharge is the logical cause and since it’s a fact of life in my home, if Zooz won’t replace the Zen 30’s I’ll move away from their devices and will install Shelly wifi relays and Minoton wireless controllers instead.

The Zen 30 switches have mostly worked until now, but occasionally they haven’t responded to Home Assistant for a minute or two - really frustrating when standing in the dark waiting for the lights to come on. Leviton dimmer plugs and Minoton wireless controllers connected to the same Zooz Z-Wave stick have been flawless, as have all my Tasmota wifi and Zigbee devices.

Despite fairly congested 2.4ghz wifi in my area with 18 networks detected by my phone, all Zigbee and Tasmota wifi devices on my network are nearly 100% reliable. In my experience Zooz Z-wave devices have been less so and occasionally are unresponsive. Other Z-wave devices have been much better.

The Tasmota plugs and lights in my network generate very little network traffic. Power monitoring plugs will generate more, but with 1 second update intervals that traffic should still be minimal.

With billions of batteries in use there are going to be plenty of complaints about issues. My specific experience is with an ancient Dell Venue convertible that’s been in regular use for 9 years with charge limiting applied that entire time. The battery still looks new and for what it’s worth, Dell’s UEFI reports it’s in excellent condition. This while the rest of the system including the charging port is completely worn out and at the end of its useful life. That computer is running Debian 12, HA and Frigate with only 4gb of ram and (outside the physical problems of a very old, heavily used laptop) is working fine.

Are the computers you have bought from Aliexpress UL listed, or do they have a European safety listing? I’ve read reports of some equipment and appliances sold by Chinese companies on various sites (including Amazon) causing fires. Not that those mean that much though. Even my UL listed Cyberpower UPS has had reports of internal shorts and fires.

There are literally billions of lithium batteries in use and you have a better chance of being struck by lightning that having a lithium battery fire. Your concern about the battery life isn’t realistic either. These batteries last for many years when the charge is limited to less than 100% and can be replaced when they finally wear out. If you run a UPS you’ll eventually need to replace those batteries too and your backup time will be usually be measured in minutes rather than hours.

As far as the ram limitation is concerned, it’s plenty for a supported Home Assistant installation and that’s exactly what this post is about.

Every machine has advantages and disadvantages, but I’m not sure why having a screen and a battery fall into the disadvantage category. The Aliexpress machines have some serious disadvantages including fans and an almost complete lack of support for most of them. And long-term support is a fantasy.

Dell sucks in many ways, but their support is in English and they produce firmware updates for several years after a product is released, especially for machines used by enterprise customers like this one.

Besides, if you add a UPS (and they all have batteries) to any of those Aliexpress mini PC’s you’re well over the price for this machine even with a gigabit Ethernet adapter.

For me $70 extra for a silent system with display, keyboard, UPS, a real warranty, and long-term support is a bargain.

Interesting, that sounds much more complex than using some backup software to image the drive!

I’ve found it to be simpler. Booting off a USB SSD allows full disk cloning to that same SSD without worrying about mounted partitions or using a separate USB thumb drive for Clonezilla. Once booted I can access the machine through SSH or NoMachine to create the backup and it is far faster than backing up to a network drive. For incremental backups Timeshift works fine.

The screen and keyboard are invaluable for backups. I have a portable SSD with Ubuntu installed for creating backups, but I often have to manually set the boot device on startup to get it to work. Setting a USB SSD for the first boot device in the BIOS/UEFI doesn’t seem to work reliably on any of my systems.

The point of a UPS or equivalent is to protect the SSD during a power failure. I’ve lost Raspberry Pi configurations several times due to power failures when I’m away from the house. It has been a major PITA and time consuming to recover from.

The one I have draws about 6 watts when running Home Assistant which means at $0.25 per KWH it would cost $1.10 per month to run. Just adding a UPS to any other platform is going to cost more per month and have a much shorter run time.

I was using Z2M and found it had some weird, unresolvable device control quirks with a dimmer I’m using. Switched to ZHA and have had no problems at all.

Perhaps so, but I’ve run HA on a Raspberry Pi under Raspberry OS, HA OS on that Pi, and HA Supervisor on a PC using Debian and am currently running it on a PC under Linux Mint. All of these worked with little or no delay between HA start and device status updates.

HA OS on its own doesn’t behave that way, so that leaves Proxmox or perhaps your specific hardware. Can’t help you though. Haven’t tried HA in any kind of virtual environment.

Something’s wrong with your configuration. What hardware, OS and HA config are you running?

My HA install does not lose anything when restarted. All my wifi, Z-wave & Zigbee devices, various entities and thermostat come back in the same state as prior to restart. I’ve run HA Supervised on two HW platforms and 3 distros and they’ve all functioned this way.

In 1903, New York Times predicted that airplanes would take 10 million years to develop. Nine weeks later the Wright brothers achieve the first manned flight.

This guy is a fool.

Offices of all types (medical, billing, tech support, etc.) only doing business on a callback basis. Customers and clients are expected to be continuously available to receive a call at the office’s convenience.

We have all become unwilling, unpaid, on-call employees of most every company we deal with.

In your response to the OP’s question where you said “most wifi routers aren’t fast enough to run complicated firewall rules, VPNs, etc. at full speed” were you also “talking about 1gbps between multiple clients on LAN and VPN”?

OP: “use case: small home network 2-3 users. some internal self hosting and maybe one day external self hosting.”

From their comments they don’t even have a gigabit Internet connection, much less anything that would stress even a moderately priced router.

Openwrt isn’t capable of providing enterprise level performance either but that’s not what’s being discussed. A high end router running Openwrt (and even cheaper hardware) should be able to handle OP’s stated use case without breaking a sweat.

PBR is in use and different LAN clients use different Wireguard VPNs or bypass the VPNs entirely. Download speeds are limited by remote server uplink speeds to about 100Mbps. Just ran a test and at full VPN utilization the router’s loafing along at 22% CPU. No matter how complex I’ve made the config this cheap router has been able to easily handle it.

What VPN speeds were you running that maxed out your router CPU? Were you running Wireguard or OpenVPN?

Openwrt includes a firewall, but most wifi routers aren’t fast enough to run complicated firewall rules, VPNs, etc. at full speed.

Not my experience. Right now I’m running 2 Wireguard VPNs and a moderately complex firewall on a single core 775Mhz Atheros TP-Link router and it’s not even breaking a sweat. More than 60% of memory is available, and even when transferring a huge file the utilization doesn’t exceed 50%.