Wow! That was an hour of sheer panic and adrenaline!
While in the process of attempting to locate, unplug at both ends, disentangle, and finally extract a power cord from my insane spaghetti of cables, I knocked out power to the same portion of my equipment that I did last time, doing the same thing, LOL. Clearly, this is a rather weak point in my physical infrastructure. But I knew that already. But have I done anything about it yet? Clearly not. LOL. Whose to blame about that? Okay, I should do something about it. Maybe. Sometimes, or perhaps more than sometimes, we so often don't learn, and we willingly and continually do things or don't do things even though we know they are wrong. Then bvad things happen, and then we ignore it some more, and it nags at us, and we ignore it some more.
Wellp, this time, things did not power up as expected. The major component that got knocked out was the entire network plant. Upon reboot, the SFP+ fiber modules did not return to service as usual. The active module was layer 3 unreachable, even though the port showed as up. The secondary (backup) module was online, but of course, it did not have any fiber connected to it. I switched the fiber over, but the connection did not come back up.
Then, some how, both modules became unresponsive, and this time, both ports went down too.
Oh boy, this was not good.
I rebooted the switch, and only the backup fiber module came layer3 online, but the Internet did not. Fortunately, the 5G connection that I canceled, and then they gave me two free months of was still up and running, and automatically powering the network, as per routing policy. So I pulled the latest firmware for the fiber module, and ran the upgrade process. This went off without a hitch. However, though the upgrader said it was rebooting, layer3 never became responsible, and The fiber link did not come back up. I rebooted the switch once again, and this time, both SFP+ ports became active, and both fiber modules were pingable on the management VLAN once again! Wahoo! Then, what's more, the Internet came up on the backup module. I did a quick swap of the fiber, and the connection is now back up on the primary fiber module, with the backup once again functional and on hot standby, for situations, I guess, just like this.
Wow! Seems that the switch had a hayday with its SFP+ section. 10G-base-T worked perfectly the whole time. Very odd indeed. I really thought there for about an hour that I had initially fried one, and then both fiber modules, a $300 value. Wellp, turns out I got lucky, and nothing is fried.
Just wow!