Originally Posted by
Fubar1323
Within our organization (responsible for critical infrastructure, just as LH) we host our most critical system on locations across Europe with an overnight failover as a realistic option. Each of the locations has multiple data centers within one metro area to provide solutions for minor failures. That‘s called prudent planning for critical infrastructure.
And did you ever test this failover by "cutting" your line? Do you really know that it will work. I also know the BSI Emergency Handbook and Disaster Recovery procedures and in my experience all the concepts on paper are a nice but will not ensure that it really works in the worst case. At the end it comes to the question of LH did enough to be have a high enough level of certainty that their concepts will work. If they had plans and agreed SLAs with Deutsche Telekom or whoever their provider is they can argue that they did their job.
And again even so called fail safe cloud solutions with distributed locations are nor fail safe. You find enough reports where Amazon or Azure cloud services went down to various reasons.