Two-row data center cooling: 2 cold aisles & one hot, or 2 hot aisles and one cold?

Tags:
Cold aisle
Data center design
Data Center Layout
Hot aisle
Hot Aisle/Cold Aisle
If I can form only two rows in a data center, which approach is more beneficial? Is it one central hot aisle with two cold aisles or one central cold aisle with two hot aisle? what are your reasons for your selection?
ASKED: February 25, 2010  8:06 PM
UPDATED: March 1, 2010  4:37 AM

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Depends on where your crac units are but 99% of the time it should be 1 cold isle and 2 hot isles that can feed the hot air return directly into the crac units.

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