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2V0-621 · Question #54

Which two considerations should an administrator keep in mind when booting from Software Fiber Channel over Ethernet (FCoE)? (Choose two.)

The correct answer is C. Multipathing is not supported at pre-boot. D. Boot LUN cannot be shared with other hosts even on shared storage. Software FCoE boot is limited to a single path at the pre-boot stage and requires a dedicated boot LUN that cannot be shared across hosts.

Section 3 – Configure and Administer vSphere 6.x Storage

Question

Which two considerations should an administrator keep in mind when booting from Software Fiber Channel over Ethernet (FCoE)? (Choose two.)

Options

  • ASoftware FCoE boot configuration can be changed from within ESXi.
  • BSoftware FCoE boot firmware cannot export information in FBFT format.
  • CMultipathing is not supported at pre-boot.
  • DBoot LUN cannot be shared with other hosts even on shared storage.

How the community answered

(24 responses)
  • A
    8% (2)
  • B
    17% (4)
  • C
    75% (18)

Why each option

Software FCoE boot is limited to a single path at the pre-boot stage and requires a dedicated boot LUN that cannot be shared across hosts.

ASoftware FCoE boot configuration can be changed from within ESXi.

Software FCoE boot configuration is performed at the firmware or BIOS level before ESXi loads; once ESXi is running the boot path configuration is already committed and cannot be altered from within the OS.

BSoftware FCoE boot firmware cannot export information in FBFT format.

Software FCoE boot firmware is capable of exporting boot configuration data in FBFT (FCoE Boot Firmware Table) format, so stating it cannot do so is incorrect.

CMultipathing is not supported at pre-boot.Correct

During the pre-boot phase, only the firmware initializes the FCoE connection using a single path to the boot LUN, meaning multipathing software such as NMP has not yet loaded and cannot provide path redundancy until ESXi is running.

DBoot LUN cannot be shared with other hosts even on shared storage.Correct

When booting from a software FCoE LUN, each host must have its own exclusively assigned boot LUN - even when that LUN resides on a shared storage array, it cannot be simultaneously mapped to or shared with other hosts.

Concept tested: Software FCoE boot limitations and dedicated LUN requirements

Topics

#FCoE#software FCoE boot#multipathing#boot LUN

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