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Hope this is the right place to ask a datacenter-related question. I don't have any experience with datacenter administration, and I am aware that the answers to the questions below might change based on many factors.

Generally speaking, in your experience or knowledge,

-how often are hard drives replaced? (once ever two years, three years, etc.)

-how many times are data replicated? (assume the data are critical)

-what is the biggest cost factor of running a datacenter? (power, servers, software licenses, other kinds of hardware, etc.)

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closed as not a real question by TomTom, Doug Luxem, EEAA, Massimo, squillman Jun 14 '11 at 20:41

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

Can not be answered, especially factor 3. – TomTom Jun 14 '11 at 20:33
I don't need absolute answers true for everyone. Anyone has had XP with datacenter administration? I'd like to hear what you got. – user80913 Jun 14 '11 at 20:35
Do you mean managing a datacenter or managing computing equipment in a datacenter? These are two vastly different things. – joeqwerty Jun 14 '11 at 20:37
if you are referring to the last question, managing a datacenter – user80913 Jun 14 '11 at 20:38
-1 too vague. too impossible to answer. – Kyle Smith Jun 14 '11 at 20:41

Can not be answered. Replace "Data Center" with "Cars" and you realize how. A LOT depends what you do.

For example... I work in a comapny having 2 high avilability data centers. 10 km apart. They purchased all ground between them to lay secure fiber lines for rplication of data. Every computer has 1-2 backup machines on hot standby.

That even includes half a million per quarter rakck sun / oracle exadata systems.

I have my own computers in another data center . one that doees hosting. They dont pay for the systems ;) And make no backups at all. Customers do.

This really is way tooo wide.

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