Aug 2 07:49:22 ur01 kernel: macvlan_broadcast+0x10e/0x13c [macvlan]
Aug 2 07:49:22 ur01 kernel: macvlan_process_broadcast+0xf8/0x143 [macvlan]
Macvlan call traces are usually the result of having dockers with a custom IP address, upgrading to v6.10 and switching to ipvlan should fix it (Settings -> Docker Settings -> Docker custom network type -> ipvlan (advanced view must be enable, top right))
I don't see a problem detecting any extra disks, assuming they are also connected to the LSI HBA check its BIOS and confirm they are being detected there, if not they also won't be detected by Unraid.
Diags are after rebooting so we can't see what happened, disk looks OK and if now it's in a different slot rebuild and see if it happens again to the same disk, since the array is stopped in the diags, before rebuilding on top make sure the emulate disk is mounting and contents look correct.
I personally know the SV300 and they are pretty slow, the other 120GB SSD also doesn't like like a performance model, and most 120GB are much slower than larger capacity SSDs, due to parallel writing to the large number of flash modules, not all ( read most) SSDs can sustain announced write speeds.
Yes, but I wanted to see ones showing the parity sync, which is going at 185MB/s, quite normal, also note that most of your disks are SMR, including parity, so some write performance degradation is expected.
Go to Settings -> Network Settings -> Interface rules and make the Gbit NIC eth0, then reboot, it will have the same settings as the older eth0.
eth1 should then use a different subnet for the direct PC connection.
Aug 1 14:00:07 Tower kernel: nvme nvme1: Device not ready; aborting initialisation, CSTS=0x0
Aug 1 14:00:07 Tower kernel: nvme nvme1: Removing after probe failure status: -19
Device is failing to initialize, if you can test with a different OS to confirm if the device is working or not.
Disk is OK for now, but like mentioned it doesn't look very good, it will likely fail again in the near future, up to you if you want to give it another shot or replace now.