SG0-001 · Question #269
A storage configuration was created which stores large amounts of infrequently used documents. The storage implementation is based on serial attached SCSI (SAS) and an edge expander. Almost all ports
The correct answer is C. cable with two SATA connectors. To connect SATA devices to a SAS domain with an expander, a cable compatible with the physical interface presented by the SAS domain is required.
Question
A storage configuration was created which stores large amounts of infrequently used documents. The storage implementation is based on serial attached SCSI (SAS) and an edge expander. Almost all ports are utilized, and a second edge expander will be installed. What is required to connect SATA devices to the SAS domain?
Options
- ASAS-SATA adapter
- BSAS-SATA protocol converter
- Ccable with two SATA connectors
- Dcable with a SAS and a SATA connector
How the community answered
(46 responses)- A2% (1)
- B2% (1)
- C91% (42)
- D4% (2)
Why each option
To connect SATA devices to a SAS domain with an expander, a cable compatible with the physical interface presented by the SAS domain is required.
A SAS-SATA adapter is not typically needed as SAS controllers and expanders natively support the SATA protocol.
A SAS-SATA protocol converter is unnecessary because the SAS protocol is backward compatible with SATA, meaning SAS controllers can directly communicate with SATA drives.
SAS expanders are designed to allow connection of both SAS and SATA devices. If the SAS domain provides a SATA-compatible physical interface, such as through a backplane with SATA ports, then a standard SATA data cable with two SATA connectors would be used to connect the SATA device to that interface.
A cable with a SAS and a SATA connector is used when connecting a SATA drive directly to a SAS port on a controller or expander, but C describes a scenario where a SATA interface is available within the SAS domain.
Concept tested: SAS and SATA device connectivity
Source: https://www.dell.com/support/kbdoc/en-us/000124237/serial-attached-scsi-sas-vs-serial-ata-sata-hard-drives-frequently-asked-questions
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