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學長真是了不起，豁然開朗，心情愉快!!

能不能再請教一題？感謝!!

A department within an organization requires 200 GB of storage for their business application. The production LUN is RAID 1+0 protected and has a local and remote replica. The local replica is on a RAID 1 LUN and the remote replica is on a five-disk RAID 5 LUN.

If the cost per GB of storage is $2.00, what is the chargeback cost to the department for application storage?

答案是$2100，完全無法理解><