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-   -   'System outage' grounds Delta flights (https://www.pprune.org/rumours-news/582700-system-outage-grounds-delta-flights.html)

Dimitri Cherchenko 8th Aug 2016 09:17

'System outage' grounds Delta flights
 
Delta airlines says all flights suspended "due to system outage nationwide"

'System outage' grounds Delta flights - BBC News

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Porky Speedpig 8th Aug 2016 12:12

Must be a nightmare for all concerned and affected - any word as to the root cause?

bafanguy 8th Aug 2016 12:15

This:

http://finance.yahoo.com/news/delta-...111236208.html

log0008 8th Aug 2016 12:20

8am and the world's busiest airport is very quiet! Not a good week for those traveling though major airports

Porky Speedpig 8th Aug 2016 12:24

Wow, that's one heck of a power outage. No doubt 2-3 back up power systems too so it will be interesting to see why one couldn't kick in.

crablab 8th Aug 2016 12:58

Surely in the age of the cloud they should have multiple data centres?!

Alanwsg 8th Aug 2016 13:12

Power cut crashes Delta's worldwide flight update systems ? The Register

OldLurker 8th Aug 2016 16:12

From experience elsewhere (not being able to see behind the curtain at Delta) I'd hazard a guess that their IT guys have been beating on the management for years to get proper hot fall-back for what is nowadays a mission-critical system, but management (supported by bean-counters) have been stalling on the necessary investment.

OTOH, they may have all the fall-back in the world but they've never actually exercised it properly, so when it's called on for real, it doesn't work ...

Lonewolf_50 8th Aug 2016 16:21


Originally Posted by OldLurker (Post 9467140)
OTOH, they may have all the fall-back in the world but they've never actually exercised it properly, so when it's called on for real, it doesn't work ...

I wonder. A whole lot of folks ran "business continuity plans" and tests before the dreaded "Y2K" event (which wasn't all that it threatened to be) so perhaps management consider that event the IT guys "crying wolf."

So now they lost a bit of this week's flock/wool ...

Porky Speedpig 8th Aug 2016 17:01

A veritable squadron of off schedule Delta birds on the Atlantic now most heading for JFK and ATL and arriving in quick succession. Likely to be a nightmare at CBP.

Derfred 8th Aug 2016 17:17


the dreaded "Y2K" event (which wasn't all that it threatened to be)
Y2J wasn't all that it threatened to be because they identified it beforehand and fixed it (at huge cost in some areas). You obviously missed that bit.

PAXboy 8th Aug 2016 17:24

Correct Derfred. Y2K was fixed in time but it suits everyone to say we cryed wolf. Then it is easier to not give credit where it's due.

Correct OldLurker. I was in IT for 27 years and because it works 99.9% of the time, they think it will be acceptable when it fails. As they say in the airline industry, "If you think preventative maintenance is expensive - try a crash for size" For years I saw IT starved of investment and then, when it did go wrong, they gave us the money we'd been asking for.

esa-aardvark 8th Aug 2016 18:00

Y2K, I made a lot of money out of this. I invested a smallish amount into a company
working on Y2K solutions. Then I forgot about it for a couple of years, investment
had improved in value by about 8 times. On the subject of power supplies the last Data
Centre which I managed had 2*Ships diesels, each capable of carrying the mainframe &
ancilliary equipment load. I wonder in the case of Delta if it was some equipment other
than the computers which failed. I remember in NZ a few years ago the highly robust
point of sale network went down when someone found and cut the only "single point failure" cable.

c52 8th Aug 2016 18:06

My near-invariable experience in IT was that there would be a total failure when the annual test of the uninterruptible power supply took place.

Ian W 8th Aug 2016 18:28

I wonder how long it will be for Delta to have a redundant system set up say at MSP? If they had done that the failure could have been transparent to the airline apart from the people directly involved at ATL. It seems that all the airline beancounters would prefer to upset their customers and give dispatch a really hard problem to solve at vast expense to the airline (just think of the EU mandated payments!) rather than have an efficient system that is fault tolerant. Perhaps, if IT had asked for the back up and it been refused the costs of the global ground stop and recovery could be put on the accountancy head count budget? That might concentrate their minds.

Smott999 8th Aug 2016 18:35

What's interesting is Georgia Power is denying that there was an outage at all. None of their customers had a loss and all their equipment was running.
Delta called them to have them look at a master switch of some sort which had failed. Hmm.

What is that called.....single point of, something.....what is it again?

If it is something that silly and bad, heads will roll.

vector4fun 8th Aug 2016 18:40

We had a lightning induced power failure years ago. Also had a bank of batteries and diesel generators to take over that failed to work. Seems the folks that maintained the UPS system monthly failed to disconnect the dummy load used for testing.....

Smott999 8th Aug 2016 18:52

I used to work at an intl bank, and every 6-9 months we had to do a full DIsaster recovery drill. Took it very seriously. If these guys had their whole global network sitting on one switch....yikes.

Lonewolf_50 8th Aug 2016 18:55


Originally Posted by Derfred (Post 9467214)
Y2J wasn't all that it threatened to be because they identified it beforehand and fixed it (at huge cost in some areas). You obviously missed that bit.

No, I didn't miss anything as I was involved in three different BCP's for Y2K. Thanks for playing. I just didn't add all of the bloody detail to that post, so perhaps I overdid the brevity.


My point is that some in current management, who probably weren't in management then, may perceive through MBA eyes that Y2K was "crying wolf" since they didn't know what it took to mitigate it. As you are probably aware, management "up and out" and medium to high turnover is common.

Joe_K 8th Aug 2016 19:51

Ars Technica has this:

"According to the flight captain of JFK-SLC this morning, a routine scheduled switch to the backup generator this morning at 2:30am caused a fire that destroyed both the backup and the primary. "

If true: oops.

Data center disaster disrupts Delta Air Lines | Ars Technica


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