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VCP510PSE · Question #81

A request has been made to the SAN administrator to provision a new LUN. A LUN (LUN 6) is created, and the SAN administrator presents the LUN to an ESXi 5.x host, using the storage array SAN…

The correct answer is A. The administrator has not performed a Rescan All on the ESXi host. D. The LUN was not presented to the correct ESXi host. The cause of the error is that the administrator didn't perform a rescan all of ESXi host. Whenever a new LUN is provisioned, a manual rescan all has to be performed to enable ESXi to discover new LUNs. The second possibility is that the new LUN was not presented to the ESXi…

Understand VMware vSphere 5 Architecture and Components

Question

A request has been made to the SAN administrator to provision a new LUN. A LUN (LUN 6) is created, and the SAN administrator presents the LUN to an ESXi 5.x host, using the storage array SAN management software. The administrator looks at the Storage configuration for the ESXi host, and does not see the new LUN. Other LUNs from the same storage array are visible. Which two conditions are most likely to cause the error described? (Choose two.)

Options

  • AThe administrator has not performed a Rescan All on the ESXi host.
  • BThe multipathing policy has been set to Fixed for the LUN.
  • CZoning on the Fibre Channel switches is not configured correctly.
  • DThe LUN was not presented to the correct ESXi host.

How the community answered

(48 responses)
  • A
    83% (40)
  • B
    4% (2)
  • C
    13% (6)

Explanation

The cause of the error is that the administrator didn't perform a rescan all of ESXi host. Whenever a new LUN is provisioned, a manual rescan all has to be performed to enable ESXi to discover new LUNs. The second possibility is that the new LUN was not presented to the ESXi host that was intended by the administrator.

Topics

#SAN LUN#Rescan All#Fibre Channel zoning#LUN visibility

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