SK0-003 · Question #200
In which of the following configurations should a SAS hard drive jumper be placed for single drive operation?
The correct answer is B. There are no configuration jumpers needed on a SAS hard drive. SAS hard drives do not require configuration jumpers for single drive operation because they use serial communication and rely on the host controller for addressing.
Question
In which of the following configurations should a SAS hard drive jumper be placed for single drive operation?
Options
- AThe jumpers should be placed in the single/master position.
- BThere are no configuration jumpers needed on a SAS hard drive.
- CThe jumpers should be placed to give the drive a SCSI ID of 1.
- DThe jumpers should be placed in the slave position.
How the community answered
(41 responses)- B95% (39)
- C2% (1)
- D2% (1)
Why each option
SAS hard drives do not require configuration jumpers for single drive operation because they use serial communication and rely on the host controller for addressing.
The concept of master/slave positions is characteristic of older PATA/IDE interfaces, which is not applicable to modern SAS drives.
SAS (Serial Attached SCSI) hard drives utilize a point-to-point serial connection where each drive has a dedicated link to the host controller or expander. Device identification and addressing are handled electronically by the SAS controller, thus eliminating the need for physical configuration jumpers.
While SAS is based on SCSI, SAS drives do not use physical jumpers to set SCSI IDs; this is handled automatically or configured through software by the SAS controller.
The concept of a slave position is characteristic of older PATA/IDE interfaces and does not apply to SAS hard drives.
Concept tested: SAS drive configuration and jumper absence
Source: https://www.snia.org/education/what-is-sas
Topics
Community Discussion
No community discussion yet for this question.