I do not see why it will cause any problems with exception of stacking mapping layer. I wonder can LVM do it natively without adding intermediate block device of 2 x 2G?

Stay with TP-Link. Ubiquity done some strange things recently.

Many sells, some just wipe them, some just contains encrypted data. If you happy with just used drive eBay is full of surprises.

Some diagram would help. Are you trying to use your server as a switch?

Why create yourself a headache and still get substandard and no-warranty drive. If you want cheaper drives go for reconditioned/refurbished/used drives. Same risks, better product. Old enterprise SAS drives are cheap and many still have plenty of heath in them.

Do you plan to compress video ( which generally already compressed format) when saving to remote location? I do not see use case for it, as you ether use lossless compression and not compressing it in any meaningful way, or just re-encode to different format and loose quality. Second option is simpler to achieve by re-encoding before sending out.

Yes, it will. Will it make any difference for you, depends of what are you doing. I would not use surveillance drive in to server, they are way too specific. Outside of that prices is pretty much same per TB/(Warranty Year) accross the board.

I done some excessive research couple of years back on the topic. you can find it here https://blog.holms.place/2022/05/01/hdd-storage-cost-comparation-may-2022.html. I do not think situation have changed match since than. Price per TB/Year is nearly constant past 8GB size.

Also consider looking to re-certified drives, or even refurbished drives. you may save hips on them. But it depends on how much you value your data, how much redundancy in you storage pool and how good your backup strategy.

Syncthing sync files, it is all does.

Look to other orchestrations solution too, like SALT. If you need to manage a lot of servers it is live saver. Setting up is only first step.

Usually just plug/unplug couple of times is enough. No fancy chemicals.

Run long smart test on the disk and check smart data after that. Other possibility is ZFS pool is nearly full.

Very strange line from specs.
USB Driver Windows XP/7/8/10/11, Linux (driver free on Raspberry Pi Raspbian system)
Does it mean binary blob driver only? and you need to pay for it to use it on PC?

If you still use HTTP for cert verification on ACME, you are doing it wrong. Use DNS-01 only, there is no need to allow any inbound traffic to your servers. and HTTP will not give you wildcard anyway.

using wildcards is really bad security practice. and at age of ACME absolutely unnecessary.

No HA. Classic HA is evil, shared control plane is good way to loose both FWs. Need redundancy use 2 independent FW + routing protocols. Losing session states during fail-over is not a big problem these days. I did in-place upgrades, but I’m running LTS and not yet done any major version upgrades. So far no problems.

Sorry, what do yo want to know? IT just a linux based router pretended to be a juniper FW. NAT/IPv6/PPPoE/VRFs are working as expected.

Can you promise a near 100% uptime? Otherwise, some email might not reach you. Just lol. Mail get queued just fine by everyone. If you really concern , setup second MX.

VyOS: Debian based router + firewall. Linux makes it easier for people to pick up the CLI but I’ve heard complaints about it being difficult to follow. Currently CLI only, at least without third-party solutions, but is powerful and competes directly with OPNsense for features for the most part. Seems to be just as stable. my mistake, FOSS version is not LTS but a rolling release and needs to be compiled.

Very misleading statement. Both rolling and LTS are FOSS, they just do not provide LTS binaries for free. Want LTS? build it yourself , all tools and guides(bit outdated) is out there. It will took 30 min you your time to setup.

Stable is not “pay only” . Just build it yourself, all tools are available. it will take 30 minutes of your time if you have docker environment ready.

Are you running it natively as “jail” ?