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.
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)- A6% (2)
- B75% (24)
- C3% (1)
- D16% (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.
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.
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.
USB is a personal peripheral bus designed for single-host, short-distance connectivity and has no support for enterprise shared storage.
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
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