Hitachi ULTRASTAR 15K450 HUS154530VLF400 - Manual (Page 108)

Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
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• Bit 12 - Global Process Logout
The drive will echo this bit from the TPRLO payload.
• Bits 11-8 - Accept Response Code
See Table 56.
• Bits 7-0 - Reserved
The Originator Process Associator and Responder Process Associator fields are not used.
The drive will echo the Third Party N_Port ID field from the TPRLO request payload when the Third Party Originator
N_Port ID Valid Flag is set to one and the Global Process Logout Flag is set to zero.
17.3.15 Request Node Identification Data (RNID)
The Request Node Identification Data ELS provides a mechanism for a node to acquire Node Identification Data from other
nodes in a Fibre Channel fabric. This function is normally used by nodes that wish to determine the topology of the network to
which they are attached.
The normal response to a RNID Req is RNID ACC from the drive containing the requested Node Identification information.
RNID is available prior to LOGIN.
Table 73: “RNID payload” shows the RNID payload.
Table 73: RNID payload
The Node Identification Data Format specifies the format of Node Identification Data returned from the drive. Acceptable
values for this field are 00h (Common Node Identification Data only) or DFh (Topology Discovery data). If this field is set to
any other value, the drive will return a LS_RJT containing a reason code of 03h "Logical Error" and a reason code explanation
of 2Ah "No additional explanation".
Table 74: “RNID accept payload” shows the RNID ACC payload.
Table 74: RNID accept payload
Item Size (Bytes)
hex ’78 00 00 00’ 4
Node Identification Data Format 1
Reserved 3
Item Size Bytes
hex ’02 00 00 00’ 4
Node Identification Data Format 1
Common Node-Identification-Data Length 1
Reserved 1
Specific Node-Identification-Data Length 1
Common Node Identification Data 0 or 16
Specific Node Identification Data 0-max