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92 Chapter4
SCSI Connections
Assigning SCSI Device IDs
Assigning Ultra2 Wide Low-Voltage Differential SCSI
Device IDs
You can determine which Ultra2 Wide Low-Voltage Differential SCSI
(LVD SCSI) devices are currently in use by reviewing the output from
the ioscan command discussed above and looking under the “H/W Path”
heading. The entry 10/0/15/1 is the built-in Ultra2 Wide Low-Voltage
Differential SCSI bus. For devices connected to the built-in Ultra2 Wide
Low-Voltage Differential SCSI bus, such as disks, the number between
the two decimals and after the third “/” in the hardware path specifies
the SCSI ID for that device. For example, a hardware path of
10/0/15/1.5.0 specifies a LVD SCSI device at SCSI ID 5. Here is the break
down of the hardware path:
SCSI device 10/0/15/1.5.0
LVD SCSI 10/0/15/1.5.0
SCSI ID 5 10/0/15/1.5.0
CAUTION Do not use SCSI device ID 7 for any device. It is reserved for the built-in
SCSI bus controller.