| Adapter | The hardware path of the Fibre Channel adapter through
which the Logical Unit Number (LUN) is seen. For multiport adapters,
this field describes a specific port on the adapter. |
| Domain | Dependent on the Fibre Channel topology of the HBA. | Typically the Domain ID of the switch to which
the target device is attached, taken from the most significant byte
of the N_Port ID of the target device. | 8:
HP-UX uses a Domain ID of 8 to indicate private loops. Fibre Channel
switches seen by HP-UX hosts cannot be configured with domain ID of
8. |
| Area | Depends on the Fibre Channel topology of the HBA. | Taken from the second byte of the N_Port ID of the target
device. On some switches, the second byte of the N_Port ID encodes
the switch port to which the device is connected. The encoding method
depends on the switch. See your switch manual to interpret this field. | 0 |
| Port | Depends on the Fibre Channel topology of
the HBA and the target device, and on the LUN addressing method used. | For LUNs with
Peripheral Device Addressing, the value of this field is always 255. |
| For other LUN methods, the value
of this field is the least significant byte of the N_Port ID of the
target device. | For other LUN methods, the
value of this field is the Loop ID of the target device. |
| Bus | Depends on the Fibre Channel topology of
the HBA and the target device, and on the LUN addressing method used. | For LUNs with Peripheral Device Addressing,
the value of this field is the upper 4 bits of the least significant byte of the N_Port ID of the target
device. | For LUNs with Peripheral
Device Addressing, the value of this field is the upper 4-bits of the Loop ID of the target device. |
| For LUNs
with Logical Unit Addressing, the value is the Bus Number field of
the LUN. For LUNs with Volume Set Addressing (Flat Space Addressing),
the value is bits 7 - 13 of the LUN. |
| Target | Depends on the Fibre Channel topology and
the LUN addressing method used. | For LUNs with Peripheral Device Addressing, the value of this field
is the lower 4-bits of the third
byte of the N_Port ID of the target device. This field usually corresponds
to the Arbitrated Loop Physical Address (AL_PA) of the target device. | With Peripheral Device Addressing, the
value of this field is the lower 4-bits
of the Loop ID of the target device. |
| For LUNs
with Logical Unit Addressing, the value is the Target field of the
LUN. For LUNs with Volume Set Addressing (Flat Space Addressing),
the value is bits 3 - 6 of the LUN. |
LUN | Depends only on the LUN addressing method
used. |
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