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-   Cathay Pacific | Cathay (https://www.flyertalk.com/forum/cathay-pacific-cathay-487/)
-   -   System upgrade progress. (https://www.flyertalk.com/forum/cathay-pacific-cathay/1312832-system-upgrade-progress.html)

peasant Feb 22, 2012 9:02 pm
Originally Posted by Cathay Boy (Post 18065907)
Reminds me of a job that I did for a 1000+ employees company to do server migration: Windows NT 4.0 Server to Windows 2003 Server. That was very fun.
LOL. So scale that up to a migration of an mid 1960's mainframe system to a modern server based system, with hundreds of internal and external interfaces, for a 20-30,000 + organisation with world wide offices, in places like Khartoum, that has to happen overnight (but the airline has to still operate while you are doing the cutover), and you will have an inkling of what an airline migration is like.

Usually likened to doing a heart lung transplant, while the patient is running a marathon.


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