Learn the key differences between NAS and SAN storage, including how NAS uses file-based protocols like NFS/SMB while SAN uses block-based protocols like FC, FCoE, and iSCSI.
Table of Contents
Question
Match the protocol to a fundamental approach for storing data. Each option may be used once, more than once, or not at all.
- NAS
- SAN
Answer Area
- Block access using a FC protocol.
- Block access using a FCoE protocol.
- Sharing files over industry standard protocols such as NFSv4 or SMB.
- Block access using a iSCSI protocol.
Answer
SAN: Block access using a FC protocol.
SAN: Block access using a FCoE protocol.
NAS: Sharing files over industry standard protocols such as NFSv4 or SMB.
SAN: Block access using a iSCSI protocol.
Explanation
NAS (Network Attached Storage) and SAN (Storage Area Network) are two common approaches for storing data, but they utilize different protocols:
NAS shares files over standard network file protocols such as NFSv4 (Network File System) or SMB (Server Message Block). The data is organized into a hierarchical file and folder structure that clients access over the network, similar to accessing files on a local drive. Multiple clients can easily share the same files. NAS is a simple, cost-effective solution for file storage and sharing.
SAN, in contrast, provides block-level access to data using storage protocols like FC (Fibre Channel), FCoE (Fibre Channel over Ethernet), or iSCSI (Internet Small Computer System Interface). Data is stored in fixed-size blocks without a file structure. The SAN storage appears to the client operating system as a local disk that can be formatted with a file system. SANs offer high performance, low latency storage that is well-suited for applications like databases.
In summary:
SAN: Block access using a FC protocol
SAN: Block access using a FCoE protocol
NAS: Sharing files over industry standard protocols such as NFSv4 or SMB
SAN: Block access using a iSCSI protocol
The key difference is that NAS uses file-based protocols while SAN uses block-based protocols. NAS is ideal for file sharing, while SAN offers high-speed storage for demanding applications. I hope this explanation clarifies the fundamental approaches of NAS and SAN storage.
HP HPE0-V25 certification exam assessment practice question and answer (Q&A) dump including multiple choice questions (MCQ) and objective type questions, with detail explanation and reference available free, helpful to pass the HP HPE0-V25 exam and earn HP HPE0-V25 certification.