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I suspect this may not work, your phone and thread device on different network, although you said both could communicate each other via IPv6. You also have media bridge between upper / lower stair ..... My first try on setup matter just use existing WiFi AP, it no need enable IPv6, I also not enable IPv6 on my network, just need enable in Unraid internally. I believe this could simplify thing. Eve energy also provide two step for setup, but I would say it is two method instead of two step. I haven't setup "OpenThread Border Router", because matter server already direct communicate with thread device. https://www.evehome.com/en/hub

Yes, work

mlax4 should be 10G NIC, but you never mention your system have 10G NIC. The problem likely relate 2.5G NIC detect problem. I got similes problem when trying USB-NIC, never have problem with PCIe-NIC and easy swap NIC in GUI.

- Yes - No I would say Unraid not Support / work well for what you want.

I would assume disk life ~4-5yrs, if capacity growth rate higher then that cycle, then I would suggest buying 16TB. Otherwise, you may end up have many disk but still lack of capacity. I would buy one 16TB first and keep the plus license. I like buy 4 disk in once in price dip cycle, except we got down trend again for TB/$ then will buy one by one.

I never have Unraid USB flash die, of course you need keep minimize writing to it. But in opposite, the USB flash will die within 3 months when it use in Raspberry, even it is high endurance type.

Look like your flash drive just EOL.

Both Yes.

I have face similar case, the Windows PC have X520 connet thr SFP+ to a switch, if PC power off too long then it won't resume the link intermittently. It can't fix by PC reboot or submit command at PC or switch. Only two way could fix it, reboot switch or replug the SFP+ on switch side. So, pls try replug the SFP+ in either side first and record which side could fix the problem, then focus does that NIC have firmware update. PS. The problem never happen again after I swap the switch.

There are no reason the 2.5g NIC will slow down 10g NIC. For make WOL on SFP+, even it is possible but I don't think it is a good idea, because SFP+ would draw too much power. All my SFP+ server use the onboard RJ45 ethernet for WOL purpose, simple set it don't allocate IP ( optional not must )

That's also why I have hardware modify a very old unused APC UPS ( entry level Back-UPS ) be a power source switcher , when power interruption occur, it will switch from mains to second power source and verse reverse ( it still work as UPS ) and notify NUT / APCUPSD. Or you can use it be a power interruption detector only. Lot of test and modifying, remove the battery, transformer and add two power input socket ......

Similar problem have report in several post. https://forums.unraid.net/topic/179085-apc-back-ups-1600va-bx1600mi-unraid-nut-plugin-reports-that-the-usp-battery-needs-replaced-but-its-new/#findComment-1483919

Yes

It work, thanks !! A minor issue, the placement will reset if page refresh, even already lock. ( Seems only happen once either window in top left, then it will change all at top horizontal )

You should use individual cable if possible.

You need buy a power measurement device, you can install a plugin to show the reading in Unraid. But I add-on use homeassistant to capture those data and got in advance.

1st, make system start in maintenance mode 2nd, Spindown all disks and take the minimum power usage. 3rd, Spinp all disks and take the idle power usage. 4th, Perform parity / disks check without correction 5th, Your could also stress the CPU by install plugin "core-freq'" and run stress test by shortkey "O" - Atomic Burn In each power state, press UPS test button to verify which power usage level start have problem. As mention before, PSU also could be problem source. So you need test carefully and systematic.

In my opinion, line-interactive type UPS are most common and practical, other type UPS are expensive and use lot of electricity. So, the best way is to test power interruption periodic, make system ( and disks ) in full load to draw maximum power ( but don't put disk in mount state ).

The error occur time exactly power failure time, it look like not only enclosure disks suffer the problem. Mar 16 13:53:39 Tower apcupsd[15677]: Power failure. Pls note when power failure, line-interactive type UPS will switching to and switching back, so there have two power interruption in very short time. If your PSU haven't enough hold-up time or UPS switching time too long, then problem will happen.

Yes, so hard to select. PS : I DIY use Lithium currentlly and limit charge the battery in ~80% ..... this make me think safe more but who know

Lithium battery have far more power density then Leadacid battery, almost up to 3x. I also expect Lithium have longer life in general. But it have higher fire risk and no matter what you do. The significant different of above product in fact are the footprint size and overall weight due to different battery use. ( I haven't compare all deeply )

As 12Gb (SAS3) single link have 48Gb ( ~4GB ), so faraway to saturate.

The provide info said HBA won't work in Dell PC, but you said even it detect under Windows it still not show any disk. So, it likely the HBA also have problem.

May be try toggle PCIe-resize bar ( smart access memory ) , ACS .... setting in BIOS. EDIT : Seems your PC was Dell Precision 3280, if yes, similar problem report previously.

You will found which Asus board support bifurcation as below, pls note there have different condition, best only support three M2. Some combination also depends onboard M.2_2 use or not. https://www.asus.com/support/faq/1037507/