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SK0-004 · Question #675

An administrator is installing a 2U server from a remote location in a rack with 4U of available rack space. The administrator prepares the rack to accept the server. Which of the following is the…

The correct answer is B. Mismatched rail kits. The rack has sufficient physical space (4U available for a 2U server), so the installation failure points to incompatible rail kits that prevent the server from mounting properly.

Server hardware installation and management

Question

An administrator is installing a 2U server from a remote location in a rack with 4U of available rack space. The administrator prepares the rack to accept the server. Which of the following is the MOST likely cause?

Options

  • ANot enough physical space
  • BMismatched rail kits
  • CWrong cable management arms
  • DBroken rack rails

How the community answered

(25 responses)
  • A
    8% (2)
  • B
    88% (22)
  • D
    4% (1)

Why each option

The rack has sufficient physical space (4U available for a 2U server), so the installation failure points to incompatible rail kits that prevent the server from mounting properly.

ANot enough physical space

The rack has 4U of available space and the server requires only 2U, so physical space is not the limiting factor.

BMismatched rail kitsCorrect

Rail kits are server-model-specific and rack-type-specific (square hole, round hole, or threaded). Mismatched rail kits - for example, rails designed for a different server chassis or a different rack post type - will physically prevent the server from sliding in or locking into place even when adequate rack units are available.

CWrong cable management arms

Cable management arms attach after installation and do not prevent a server from being mounted in the rack.

DBroken rack rails

Broken rack rails would be a physical defect discovered during inspection, not the most likely cause of a new installation failure in a prepared rack.

Concept tested: Server rack rail kit compatibility and installation

Source: https://www.dell.com/support/kbdoc/en-us/000178044/how-to-install-a-dell-poweredge-server-into-a-rack

Topics

#rack installation#rail kits#server mounting#2U server

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