Friday, 16 July 2004
|0418 - Note to self: plug the right cord in|
I'm up at this less-than-optimal hour after dealing with a power outage. The power was out for about 10 to 15 minutes, near as I can tell. I woke up to the sound of multiple UPSes beeping. I discovered that the 1500 VA UPS in the machine room will run the Alphaserver 4000 for about 10 minutes, I think, before deciding it's had enough. Fortunately, I was able to get the system shut down cleanly before the UPS packed it in.
We've got four UPSes in the house: one in the machine room, as mentioned; one 350 VA unit in the attic, to power a single Ethernet switch for the upstairs backbone; one 500 VA (I think) in the office, to power Paul's Linux box (and I need one for the Mac); and one 500 VA unit in the basement, to power the other backbone Ethernet switch, the DSL modem, the voice-over-IP telephone adapter, and the firewall.
Unfortunately, all of that was less useful, this time around, than I'd intended. We use two low-end PCs for the firewall, alternating between them as software upgrades and the like happen. One of them had failed while I was in LA last, and the other was brought into service. Only one problem: Neither of us thought to plug that box into the UPS. We had a running network that couldn't communicate with the outside world because the firewall was down. Grumble.
current mood: awake
You've probably already looked it up by now, but...
just in case: NUT
is worth investigating.
James "finally installing apcups myself" Jones
What's a UPS?
Uninterruptible power supply. In the sizes I mention, it's a box that plugs into the wall power outlet, and has several outlets of its own that provide AC power without interruption, at least as long as the batteries hold up.
Oops... that's all... just oops (grin)