An Implementation Engineer is installing a FlashArray//XL chassis with two DirectFlash Shelves. What is the minimum rack space required for this installation?
Calculating rack space requirements is a fundamental pre-installation task. The FlashArray//XL series features a larger chassis than the //X series to accommodate its increased power, cooling, and DirectFlash capabilities.
The FlashArray//XL Chassis itself occupies 5 Rack Units (5U) .
A standard DirectFlash Shelf (DFS) occupies 2 Rack Units (2U) .
In this scenario, the customer is installing one //XL chassis and two DFS shelves.
Calculation:
1 x //XL Chassis (5U) = 5U
2 x DirectFlash Shelves (2U each) = 4U
Total = 9U.
Therefore, the Implementation Engineer must verify that there are at least 9 contiguous Rack Units available in the cabinet. Standard best practice also suggests placing the shelves immediately above or below the controller chassis to accommodate the 3-meter maximum cable length for the backend fabric, so these 9U should ideally be in a single block.
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