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SK0-004 · Question #480

A storage administrator needs to connect a server to a storage array shared by 12 other servers. Which of the following interface types could be used to accomplish this connection?

The correct answer is B. SAS. SAS supports multi-initiator configurations via SAS expanders, enabling multiple servers to share a single storage array over a direct interface.

Server hardware installation and management

Question

A storage administrator needs to connect a server to a storage array shared by 12 other servers. Which of the following interface types could be used to accomplish this connection?

Options

  • AFibre Channel
  • BSAS
  • CUSB
  • DSCSI

How the community answered

(32 responses)
  • A
    6% (2)
  • B
    75% (24)
  • C
    3% (1)
  • D
    16% (5)

Why each option

SAS supports multi-initiator configurations via SAS expanders, enabling multiple servers to share a single storage array over a direct interface.

AFibre Channel

Fibre Channel requires a dedicated SAN fabric with FC switches and host bus adapters, making it a separate network overlay rather than a direct storage interface connection.

BSASCorrect

SAS (Serial Attached SCSI) supports shared storage through SAS expanders and multi-initiator topologies, allowing multiple host servers to connect directly to the same storage array without requiring a separate dedicated fabric infrastructure. This makes SAS a viable interface for shared storage environments in enterprise deployments.

CUSB

USB is a personal peripheral bus designed for single-host, short-distance connectivity and has no support for enterprise shared storage.

DSCSI

Parallel SCSI has severe multi-host limitations, short cable length restrictions, and is an obsolete technology that cannot practically support 12 concurrent server connections to a shared array.

Concept tested: SAS multi-initiator shared storage array connectivity

Source: https://learn.microsoft.com/en-us/windows-hardware/drivers/storage/introduction-to-serial-attached-scsi-sas

Topics

#SAS#shared storage#storage connectivity#SAN

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