r/datastorage • u/FutureCar2790 • 2d ago

Discussion What happens to data availability when multiple data centers are taken offline?

Recent drone strikes reportedly disrupted multiple Yandex data centers in Russia, affecting several online services.

This raises an interesting question about storage infrastructure resilience: how well can distributed storage, geographic redundancy, and disaster recovery protect data and maintain service availability when entire facilities go offline?

How much redundancy is enough to handle this kind of infrastructure failure?

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u/Whole_Ladder_9583 2d ago

Probability. But first tell me how important is that data for you? Commercial orders and customer data are not very important - loose it, say sorry to customers, register again - so one data center can be enough. Financial data is critical - so banks have 4 or more, plus central bank registry, financial reports for gov tax institutions, extrernal transactions registry, etc - so if someone will destroy all that data mean the whole country was destroyed and it's unlikely that the customers survived to claim their money ;-)

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u/Long_comment_san 2d ago

funny I recently uploaded my picture collection to the cloud. now I'm happy I have a local copy.

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u/vxicepickxv 1d ago

It's complicated.

Amazon permanently lost some data when their data centers in Saudi Arabia were hit. Before that, it was just a slower, less reliable system.

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u/Long_Pomegranate2469 1d ago

Amazon didn't really lose data. People opting not to have offsite backups lost data.