Hitachi HUS154530VLF400 User Manual
Hitachi Ultrastar 15K450 (FC-AL) Hard Disk Drive Specification
98
17.4.1 Register FC-4 Types (RFT_ID)
The drive uses RFT_ID to register its FC-4 type, (SCSI-FCP), with the Fabric Name Server. An RFT_ID request is sent to the
well-know address FFFFFCh (Fabric Name Server) and must be attempted after a successful FLOGI.
well-know address FFFFFCh (Fabric Name Server) and must be attempted after a successful FLOGI.
Table 83: RFT_ID payload
As with all Common Transport requests, the payload of an RFT_ID starts with the CT_IU header. The FCS_Type value of the
CT_IU Header is set to FCh to indicate a Directory Service Request, while the FCS_Subtype value is set 02h to indicate that
the request is directed to the Name Server. The Command code is set to 0217h to specify an RFT_ID request. For an
RFT_ID_ACC/RJT, the Command/Response code is set to 8001h for a RFT_ID_RJT and 8002h for RFT_ID_ACC. If the
response was a FA_RJT, the Reason Code, Reason Code Explanation, and Vendor Unique fields would be set to indicate which
error condition occurred. The drive does not check any other fields in an FS_ACC/RJT payload.
CT_IU Header is set to FCh to indicate a Directory Service Request, while the FCS_Subtype value is set 02h to indicate that
the request is directed to the Name Server. The Command code is set to 0217h to specify an RFT_ID request. For an
RFT_ID_ACC/RJT, the Command/Response code is set to 8001h for a RFT_ID_RJT and 8002h for RFT_ID_ACC. If the
response was a FA_RJT, the Reason Code, Reason Code Explanation, and Vendor Unique fields would be set to indicate which
error condition occurred. The drive does not check any other fields in an FS_ACC/RJT payload.
The Supported FC-4 Bitmap indicates which FC-4 protocols the RFT_ID requestor supports. The drive sets the eighth bit of
this bitmap to indicate that it supports FC-4 type 08h (SCSI-FCP).
this bitmap to indicate that it supports FC-4 type 08h (SCSI-FCP).
Table 84: RFT_ID ACC/RJT payload
Byte Item
Size
(Bytes)
0
-
15
CT_IU Header
16
16
Reserved
1
17
-
19
S_ID of sending NL_Port
3
20
-
51
Supported FC-4 types bit map: byte 22 = 0x01, all others = 0x00
32
Byte Item
Size
(Bytes)
0
-
15
CT_IU Header
16