SCSI Connections
Assigning SCSI Device IDs
Assigning External SCSI Device IDs
You can determine which SCSI devices are currently in use by looking under the H/W Path
heading in the output from the ioscan command. The entry 10/0/15/0 is the built-in
SCSI bus. For devices connected to the built-in 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 10/0/15/0.2.0 specifies an SCSI
device at SCSI ID 2. Here is the breakdown of the hardware path:
SCSI device.
10/0/15/0.2.0
SCSI.
10/0/15/0.2.0
SCSI ID 2.
10/0/15/0.2.0
CAUTION
Do not use SCSI device ID 7 for any device. It is reserved for the built-in SCSI
bus controller.
Assigning Internal SCSI Device IDs
You can determine which LVD SCSI devices are currently in use by looking under the H/W
Path heading in the output from the ioscan command discussed previously. The entry
10/0/15/1 is the built-in LVD SCSI bus. For devices connected to the built-in LVD 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 breakdown 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.
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Appendix B