Western Digital T13/2132-D - Manual (Page 65)

June 23, 2010 T13/2132-D Revision 3
Working Draft Enhanced Disk Drive - 4 (EDD-4) 53
SATA 56 Byte Port number
Value Description
00h..1Fh SATA controller port number to which the device is connected. If
the device is behind a port multiplier then SATA controller port
number shall represent the SATA controller port number to which
the port multiplier is connected.
20h..FFh Reserved
57 Byte Port Multiplier number
Value Description
00h If device is connected directly to the SATA controller, this byte
shall be 00h
01h..0Fh Port Multiplier port number
10h..FFh Reserved
58 Word Reserved
60 DWord Reserved
64 QWord Reserved
SAS 56 QWord 64-bit SAS address
64 QWord Logical Unit Number
Table 24 — Device Path Definitions (part 2 of 2)
Interface Type Offset Type Definition