Yes, the weakest point fort RPi is the USB connection to the drive.
What do you mean by this? USB 3.0 is 5 Gbit/s, which isn't far off from sata 3 which is 6 Gbit/s.
even in RAID and you are good to go.
You can even raid 2 USB 3.0 drives with mdadm in Linux if you want.
Use a damn stable system, a NUC, a second hand Dell workstation with good internal SSD
In general I do agree with this. I just bought a Dell Wyse 5070 thin client for $40 USD recently. I bought a 1TB m.2 sata SSD for $42 USD. So for a total of ~$85 USD I have a system that is faster than a RPI 5. I don't think you could get a RPI 5 with a case, PSU, 1TB SSD, Sata to USB 3.0 adapter for $85.
You could also get something like an HP elitedesk 800 g4 mini used for around $150 and that accepts 2 m.2 NVMe's if you want raid1.
HP elitedesk 800 g4 mini used for around $150 and that accepts 2 m.2 NVMe's if you want raid1.
That one I name a good machine for a LN node.
USB 3.0 is 5 Gbit/s, which isn't far off from sata 3 which is 6 Gbit/s.
Is not about speed is about reliability.
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Is not about speed is about reliability. Is sata 3 more reliable than usb 3.0?
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