'how to storage like youtube huge database?
how youtube can get really huge database?
from google searching 18 ~ 20 terabytes HDD is the largest HDD in the world
and there are more than 800 million videos on youtube
each videos have lots of memories
if each video's memory is 50GB then 800 million * 50GB is 40 billion GB == 39,062,500 TB
then they need at least 1,953,125 HDD
is youtube really have like that numbers of HDD? or is there other way to storage data?
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