| 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. |
Printable version
