SK0-004 · Question #630
An administrator has been asked to put together a JBOD. Which of the following interfaces supports redundant controller? (Choose two.)
The correct answer is B. SAS C. SATA. In a JBOD enclosure, SAS and SATA are the drive interfaces that support redundant controller configurations for high-availability storage.
Question
An administrator has been asked to put together a JBOD. Which of the following interfaces supports redundant controller? (Choose two.)
Options
- ADVD
- BSAS
- CSATA
- DSSD
- EUSB
How the community answered
(29 responses)- B90% (26)
- D3% (1)
- E7% (2)
Why each option
In a JBOD enclosure, SAS and SATA are the drive interfaces that support redundant controller configurations for high-availability storage.
DVD is an optical disc interface and is not used as a data storage interface in JBOD enclosures.
SAS (Serial Attached SCSI) natively supports dual-ported drives and multipath I/O, making it the primary interface used in enterprise JBOD enclosures with redundant controllers for path failover.
SATA drives can also be used in JBOD enclosures that incorporate SAS expanders, allowing those enclosures to present redundant controller paths even to SATA-attached drives in enterprise configurations.
SSD describes a storage medium type, not an interface - SSDs connect via SATA, SAS, or NVMe and do not define controller redundancy on their own.
USB is a peripheral interface not designed for enterprise storage redundancy and is not used in JBOD enclosures with redundant controllers.
Concept tested: JBOD interfaces supporting redundant controller configurations
Source: https://www.snia.org/education/storage_networking_primer/san/sas
Topics
Community Discussion
No community discussion yet for this question.