2V0-622 Question #144: Real Exam Question with Answer & Explanation

The correct answer is A: Delete the partitions manually with partedUtil.. A disk with an existing MBR partition table prevents ESXi from creating a new VMFS datastore, and the partedUtil command must be used to delete the existing partitions so ESXi can write a new GPT partition table and VMFS file system.

Section 3 – Configure and Administer vSphere 6.5 Storage

Question

A vSphere Web Client task fails while creating a VMFS datastore on a disk with these characteristics: -The disk was formatted with an Master Boot Record (MBR) partition table -The disk was not erased -The disk is visible in the vSphere Web Client What action needs to be performed to resolve the issue?

Options

ADelete the partitions manually with partedUtil.
BCreate a VMFS3 file system first, then upgrade it.
CCreate a VMFS5 file system with the command esxcli storage filesystem add.
DDelete the data with the vmkfstools command.

Explanation

A disk with an existing MBR partition table prevents ESXi from creating a new VMFS datastore, and the partedUtil command must be used to delete the existing partitions so ESXi can write a new GPT partition table and VMFS file system.

Common mistakes.

B. Creating a VMFS3 file system first is not possible for the same reason - the existing MBR partition table blocks any new VMFS creation, and this two-step approach does not resolve the root cause.
C. The esxcli storage filesystem add command adds an existing formatted device to the list of known datastores; it does not create or format a new VMFS file system on a disk that still has a conflicting partition table.
D. The vmkfstools command operates on VMDK files and existing VMFS volumes and has no capability to wipe or repartition a raw disk containing an MBR partition table.

Concept tested. partedUtil clearing MBR partition table for VMFS datastore

Reference. https://knowledge.broadcom.com/external/article/308361/using-partedutil-on-esxi.html

Topics

#VMFS datastore#MBR partition table#partedUtil#datastore creation failure

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