2V0-21.23 Question 12
Single answerA VMware administrator is setting up a new datastore to be shared between multiple ESXi hosts in a vSphere environment. The organization requires a protocol that supports file-based access and allows multiple hosts to read and write concurrently to the same datastore. Which storage protocol is most appropriate for this setup?
- A
NFS (Network File System)
- B
iSCSI (Internet Small Computer Systems Interface)
- C
Fibre Channel SAN (Storage Area Network)
- D
VMFS (Virtual Machine File System)
Show answer and explanation
Correct answer: A
Explanation
The correct answer is NFS, as it is a file-based storage protocol that allows multiple ESXi hosts to access the same datastore simultaneously without requiring a clustered file system. This makes it the most suitable choice for the given scenario where concurrent read/write access is required.
- A. Correct.
NFS is a file-based storage protocol that allows multiple ESXi hosts to concurrently access the same datastore. It is designed for scenarios where shared access to a file system is required and supports multiple concurrent readers and writers.
- B. Incorrect.
iSCSI is a block-based storage protocol. While it supports shared storage, it requires a clustered file system like VMFS to allow multiple hosts to share the data concurrently, making it less appropriate for this specific use case.
- C. Incorrect.
Fibre Channel SAN is also a block-based protocol and, like iSCSI, requires a clustered file system such as VMFS to support shared access across multiple hosts.
- D. Incorrect.
VMFS is not a storage protocol but a clustered file system used on block-based storage protocols like iSCSI or Fibre Channel SAN. It cannot be used independently as a storage protocol.