HP-UX Mass Storage Stack - Hardware Path Aliasing

Hardware path

A series of numbers representing the physical or virtualized location of a device.

HBA

Host Bus Adapter

HBA hardware path

Hardware path to an HBA. In the agile view of the I/O tree, the HBA hardware path has the

following format: hba_path.

HPA

Hardware Path Aliasing

I_T nexus

As defined by the T10 SAM standard, a nexus between a SCSI initiator port and a SCSI target

port.

I_T_L nexus

As defined by the T10 SAM standard, a nexus between a SCSI initiator port, a SCSI target port,

and a LUN.

LUN

Logical unit that refers to an end storage device, such as disk, tape, floppy, cdrom, and changer.

This is the logical unit itself and does not represent the path to the logical unit.

LUN hardware path

The hardware path to the LUN in the agile view of the I/O tree. It has the form

64000/0xfa00/0x*.

LUN ID

Equivalent to the logical unit number defined by the T10 SAM standard.

Lunpath

The path to a LUN. It is also known as an I_T_L nexus.

Lunpath hardware path

The hardware path of a lunpath. In the agile view of the I/O tree, the lunpath hardware path

format is: hba_path.Target_port WWN or Target_Id.0xLUN_id

SAM

T10 SCSI Architecture Model standard (available at

http://www.t10.org).

Target path

The path to a target port. It is also known as an I_T nexus.

Target path hardware path