350-601 · Question #102
What is an advantage of NFS as compared to Fibre Channel?
The correct answer is D. NFS provides the dynamic allocation of storage capacity. A key advantage of NFS compared to Fibre Channel is its ability to provide dynamic allocation of storage capacity, as it operates at the file system level, which facilitates flexible and scalable expansion of shared storage without complex LUN management.
Question
What is an advantage of NFS as compared to Fibre Channel?
Options
- ANFS removes the impact of IP overhead.
- BNFS enables thin provisioning for LUNs.
- CNFS provides direct access to the underlying storage hardware.
- DNFS provides the dynamic allocation of storage capacity.
How the community answered
(28 responses)- A4% (1)
- B7% (2)
- D89% (25)
Why each option
A key advantage of NFS compared to Fibre Channel is its ability to provide dynamic allocation of storage capacity, as it operates at the file system level, which facilitates flexible and scalable expansion of shared storage without complex LUN management.
NFS operates over TCP/IP networks, meaning it incurs IP overhead, whereas Fibre Channel is a dedicated storage protocol that operates without IP encapsulation.
Thin provisioning is a feature implemented at the storage array level, not by the access protocol itself; both NFS and Fibre Channel can access storage that is thinly provisioned.
NFS provides file-level access, abstracting the underlying block storage details, while Fibre Channel (a SAN protocol) provides block-level access to the storage hardware.
NFS, as a file-level protocol commonly used with Network Attached Storage (NAS), inherently supports and facilitates the dynamic allocation and expansion of storage capacity by allowing administrators to grow file systems on the fly and share that capacity flexibly, which is often more straightforward than managing LUNs in a Fibre Channel SAN environment.
Concept tested: NFS vs Fibre Channel capabilities
Source: https://www.redhat.com/en/topics/data-storage/nas-vs-san
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