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SK0-004 · Question #220

A system administrator has determined that more storage is needed for company data. The storage requires the highest speed data transfer rate with maximum performance. Which of the following…

The correct answer is A. FC SAN. Fibre Channel SAN delivers the highest throughput and lowest latency of the listed options, making it the correct choice when maximum storage performance is required.

Server hardware installation and management

Question

A system administrator has determined that more storage is needed for company data. The storage requires the highest speed data transfer rate with maximum performance. Which of the following solutions MUST be implemented to meet the business requirements?

Options

  • AFC SAN
  • BFCoE
  • CiSCSI
  • DJBOD

How the community answered

(27 responses)
  • A
    74% (20)
  • B
    4% (1)
  • C
    15% (4)
  • D
    7% (2)

Why each option

Fibre Channel SAN delivers the highest throughput and lowest latency of the listed options, making it the correct choice when maximum storage performance is required.

AFC SANCorrect

FC SAN uses a dedicated, lossless Fibre Channel fabric with hardware-level flow control, operating at speeds from 8Gb up to 128Gb per second, and is not subject to the contention or overhead of shared Ethernet infrastructure. Because the FC fabric is purpose-built for block storage traffic, it consistently delivers the lowest latency and highest sustained transfer rates available in enterprise storage, satisfying the requirement for maximum performance.

BFCoE

FCoE encapsulates Fibre Channel frames over Ethernet, introducing additional protocol overhead and competing with other Ethernet traffic, which results in higher latency and lower sustained performance compared to native FC.

CiSCSI

iSCSI carries SCSI commands over standard IP-based Ethernet networks, which have higher inherent latency and lower throughput than a dedicated Fibre Channel fabric, making it unsuitable where maximum performance is mandatory.

DJBOD

JBOD is a direct-attached, non-redundant disk configuration that lacks a SAN fabric entirely and does not provide the high-speed, low-latency block storage transfer rates that an FC SAN delivers.

Concept tested: FC SAN as the highest-performance block storage protocol

Topics

#FC SAN#storage performance#data transfer rate#storage solutions

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