Additionally, there is the SCSI connector and transport, which is not present on the drives themselves, but is used to connect devices using TCP/IP networks. The drives themselves would use one of the other three connector types.



Note that a SCSI target device (which can be called a "physical unit") is often divided into smaller "logical units." For example, a high-end disk subsystem may be a single SCSI device but contain dozens of individual disk drives, each of which is a logical unit...


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