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I've heard the term mirror site being used for downloading packages, but I'm not exactly sure of its importance. Isn't a mirror site just a copy of another website?

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closed as off topic by Indrek, Xavierjazz, Randolph West, slhck Aug 26 '12 at 7:49

Questions on Super User are expected to relate to computer software or computer hardware within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question. Also, this is off-topic for Superuser since it doesn't concern computer hardware or software (see the FAQ for more information). – Indrek Aug 26 '12 at 1:11
Nothing should be off topic. If some one has more knowledge than other, it is for sharing the knowledge. Not properly directing is a problem but over period of time it gets solved. You do not know how old is the person seeking answer. – C2940680 Aug 26 '12 at 2:09
@C2940680 I don't see what the OP's age has to do with anything. But at any rate, the FAQ defines which questions are acceptable on SU and which aren't. – Indrek Aug 26 '12 at 13:44
up vote 2 down vote accepted

Exactly. A mirror is there to balance the load (traffic) among many servers and to provide redundancy. If one server breaks down temporarily, the others will still be there and happy to server your content.

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Also, mirrors allow you to download from a server that is closer to you than the master server, which can speed things up. And having mirrors in many countries makes it harder to shut you down, if you are running a kind of site that annoys people with expensive lawyers. – Alan Curry Aug 26 '12 at 1:19
Kind of forgot this, thanks for the addition even though the question got closed :) – sinni800 Aug 27 '12 at 0:53

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