When installing multiple SCSI drives in a system, which of the following is correct?

The correct answer is D. Each drive must have a different SCSI ID. SCSI (Small Computer System Interface) uses a shared bus architecture where each device must have a unique ID number so the controller can address each device individually. If two devices share the same SCSI ID, a bus conflict occurs and neither device will function correctly…

Hardware

Question

When installing multiple SCSI drives in a system, which of the following is correct?

Options

AAll drives must have the same SCSI ID.
BDrives will be automatically assigned an ID by the controller.
CDrives in the same RAID array must have the same SCSI ID.
DEach drive must have a different SCSI ID.

How the community answered

(22 responses)

B
9% (2)
C
5% (1)
D
86% (19)

Explanation

SCSI (Small Computer System Interface) uses a shared bus architecture where each device must have a unique ID number so the controller can address each device individually. If two devices share the same SCSI ID, a bus conflict occurs and neither device will function correctly. SCSI IDs are not automatically assigned by the controller (B); they must be manually configured via jumpers or switches on each drive. This uniqueness requirement applies to all devices on the bus, regardless of RAID grouping.

Topics

#SCSI ID#SCSI configuration#drive addressing#storage

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