I have to admit I’d been expecting the problem. The machine had been having boot problems for a while, and those problems were getting worse. I have something lined up to replace it, but I’ve yet to configure it properly. I have to properly understand OpenBSD’s vmd, and I don’t.
So, temporarily, I’ve removed the 6501 and restored the 4801 that the 6501 replaced. The 4801 is an older model of Soekris SBC, one I bought in the early dreadnoughts before I left the UK. It’s clearly a little pressured by the traffic, but appears to be bearing up.
It can’t stay in place, though. The 4801 has 100Mbit network ports. My ISP, le post, are sending 500Mbit down the wire (a free upgrade from the 100Mbit connection I bought). The 4801 just can’t keep up. It’s not quite as bad as a TGV powered by a pedal, but ….