Hitachi HUS154530VLF400 User Manual

  

 Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification

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In addition, the Drive implements FC-FLA as a super-set of the FC-PLDA. Thus, the Drive conforms to FC-PLDA except for 
those behaviors explicitly defined by the FC-FLA profile. The PLDA makes the following additional requirements. 

1.   The FC-4 is SCSI-FCP. 
2.   The Drive provides a Class 3 Fibre Channel service.

-  NO indication of (un)successful class 3 frame delivery is transmitted. 

-  Frame flow control is buffer-to-buffer only.

-  Class 1 and 2 frames are ignored.

3.   Direct point-to-point attachment with an N_Port is not supported.

Every Fibre Channel Node and Port in the world must have a unique name. The Drive is a node with two L_Ports and therefore 
has a Node_Name and two Port_Names. 

Both the Node_Name and Port_Name are in 64-bit IEEE Registered Name format, as illustrated in Table 24.

The Name Address Authority field (0101b) specifies the format used for the rest of the name as follows:

Organizationally Unique Identifier (24 bits). Canonical form means that each byte is stored in 

Block assignment within Hitachi Global Storage Technologies

Node/Port Identifier

Node

Port 1

Port 2

Not assigned

Sequentially increasing drive serial number assigned at manufacturing.

An NL_Port address, as illustrated in Table 25, is a 3 byte value that uniquely identifies an NL_Port on a Fibre Channel net-
work. The Domain and Area bytes are assigned to a NL_Port by its local FL_Port. The least significant byte in the NL_Port 
address is the Arbitrated Loop Physical Address (AL_PA), and uniquely identifies a NL_Port on its local loop.

A Hard AL_PA is one which is supplied, via the Drive connector, from external switches or jumpers. A Soft AL_PA is one 
which is assigned during Loop Initialization

0101

OUI in Canonical Form

Block Assignment

S/N

Object

Domain

Area

AL_PA