Technical information

HGST Ultrastar C15K600 Hard Disk Drive Specification
105
Table 76 Inquiry Data Format - EVPD = 1, (Page Code - 83h) (part 2 of 2)
Byte
Bit
7
6
5
4
3
2
1
0
48
Protocol Identifier = 0h
Code Set = 3
49
PIV=0
RSVD
Association=2
Identifier Type = 8
50
Reserved = 0
51
Identifier Length =24 (18h)
52-55
"naa" (ASCII)
56-71
(MSB)
Target Device Name Identifier (World Wide ID) in ASCII
(LSB)
72-75
Reserved = 0
- Protocol Identifier is valid only when PIV=1.Protocol Identifier = 0 indicates Fibre Channel devices.Protocol
Identifier = 6 specifies SAS devices
- Code Set specifies the data type for the identifier field. Code Set = 1 indicates binary data, Code Set = 3
indicates ASCII.
- PIV (Protocol Identifier Valid) set to zero indicates that the Protocol Identifier field should be ignored. PIV set
to one indicates that the Protocol Identifier field contains a valid value.
- Association specifies the entity with which the Identifier field is associated: 0h for LUN, 1h for Target or
Relative Port, or 2h for Target Device.
- Identifier Type specifies the format and assignment authority for the identifier: 3h indicates NAA format of the
WWID for LUN, Target Port and Target Device; 4h indicates Relative Port; 8h indicates SCSI name string.
- Identifier fields contain the actual Identifier Descriptor:
- The LUN, Target Port and Target Device Name Identifiers are defined in the NAA IEE WWID format where:
- Worldwide ID is a 64-bit unique identification for each drive. The format is:5000CCAh xxxh yyb n where:
- xxx is the 12-bit block assignment defined for each model and manufacturing site
- n is the 22-bit drive unique serial number
- yy is the 2-bit port/node ID select
- The Relative Port Identifier indicates the port which received the Inquiry command:0000 0001h for the
Primary Port, or 0000 0002h for the Secondary Port.