When connecting devices on the SCSI bus, what is the highest SCSI ID you can use?

In SCSI (Small Computer System Interface) architecture, each device on the bus is assigned a unique identifier known as a SCSI ID. The range of SCSI IDs is from 0 to 15, allowing for a total of 16 possible addresses. However, certain SCSI IDs are reserved for specific purposes.

The SCSI IDs 0 and 1 are typically used for the host adapter and boot devices, respectively. This means that other devices need to be assigned IDs beginning from 2 onward. Generally, the highest SCSI ID available for devices in a typical configuration is ID 7, as IDs 8 to 15 are reserved in some implementations for certain uses or may not be applicable.

Therefore, when connecting devices on the SCSI bus, the highest SCSI ID that can be assigned is indeed 7, making it essential for setting up these connections in a way that avoids conflicts and ensures proper communication between devices.