ANC just got the Portland flight's computer back up and logged in and now they just opened the jet bridge door and are announcing boarding procedures now. Looks like they think they are good.

If they couldn't bring up their generators before their batteries died, that means something bad happened at their datacenter...

This Malaysian airline came under fire for writing boarding passes: http://www.dailymail.co.uk/travel/tr...assengers.html

The almost certainly have a plan and hardware for it, which obviously failed.

Nothing is 100 percent redundancy.

The app was working fine for me about four or five hours ago.

Now you don't see lines at MSP and the rumor is that DL agents are taking passengers to some other location to check in. Really--that's what I heard.

ADDED: Airport kiosks and OLCI are supposedly back up now, but flights can't leave.

For a system of that size, battery power is probably on the order of minutes. So if generators no-go....

More likely some of the power equipment like a panel or switch between the generators and the system failed.

True, but all that tells me is they don't regularly test the power backup system under full load as they should...

I thought the same thing. When you can't bridge he gap between a power outage and the generators coming on (which should be 1-2 minutes tops), then predictability goes out the window.

Camping in the msp sky club. About 5/6ths of the seats taken. Even for a Monday it looks like a suit/consultant fashion show. No announcements in the last 20 min.

This I find very hard the believe, unless their multiple ISP's lost power too. There's battery backups for the first 10-12 min, generators to provide endless power, not to mention DR sites. Really don't get this issue. (FYI, IT architect here. If this was my people, heads would be rolling)

At least there shouldn't be bad weather in ATL today, though they are forecasting "weather" for the rest of the week.

Really glad I moved a trip from this week to next.

As for a power failure, not entirely unheard of. I cannot speak to what DL's setup is, but most wireless companies will have a battery backup at their switch and billing centres that kicks in until the (usually natural gas) generator kicks in. The length of time that the battery lasts is about 5 minutes or so, as the generators should be turning on within a few seconds of the main failure. Wireless obviously is in a different situation, but a switch that goes down can cause a cascade failure across the network as things are rerouted appropriately. Turning it off and back on again is not as simple as it may seem.

Oh, I'm sure heads *are*/will be rolling.

Will be interesting to see how many details (if any) get released. Does DL host themselves/on site in ATL? Or do they use a local datacenter? Any other customers affected by this power outage?

Today is putting the hurt on the cancellation and on time preformance. Delta the most on time airline if our computers work. No back up generator is the best punchline ever.