200-150 · Question #243
Which two protocols can you use for SAN storage that is accessed via low-latency, high- bandwidth networking'? (Choose two )
The correct answer is B. CIFS D. FCP. FCP is the native block-level SAN protocol optimized for high-bandwidth, low-latency Fibre Channel fabrics, while CIFS provides file-based storage access that performs well over fast, low-latency networks.
Question
Which two protocols can you use for SAN storage that is accessed via low-latency, high- bandwidth networking'? (Choose two )
Options
- AiSCSI
- BCIFS
- CAFP
- DFCP
- ENFS
How the community answered
(44 responses)- A5% (2)
- B93% (41)
- E2% (1)
Why each option
FCP is the native block-level SAN protocol optimized for high-bandwidth, low-latency Fibre Channel fabrics, while CIFS provides file-based storage access that performs well over fast, low-latency networks.
iSCSI encapsulates SCSI commands inside TCP/IP packets, introducing additional header overhead and latency compared to native Fibre Channel, making it less optimal for lowest-latency SAN environments.
CIFS (Common Internet File System) provides file-level storage access and achieves good throughput when deployed over low-latency, high-bandwidth network infrastructure.
AFP (Apple Filing Protocol) is a NAS file-sharing protocol specific to Apple environments and is not used for general SAN block storage access.
FCP (Fibre Channel Protocol) is the primary block-level protocol used in SAN environments and is purpose-built for low-latency, high-bandwidth Fibre Channel fabrics, making it the definitive SAN storage protocol for such networks.
NFS is a file-level NAS protocol that operates over IP networks and does not provide block-level SAN storage access.
Concept tested: SAN storage protocols for high-performance networking
Source: https://www.cisco.com/c/en/us/td/docs/storage/san_switches/mds9000/sw/rel_8_x/configuration/guides/san_config/san_config.html
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