Fc-2 Features; Login Validation; Table 5-5 Library Identification Scheme - Sun Microsystems storagetek sl500 Reference Manual

FC-2 Features

FC-2 Features
The FC-2 level provides the signaling protocol and specifies the rules and
requirements to transfer blocks of data.
The FC-2 level is the most complex level in Fibre Channel protocol and provides
the different classes of service, packetizing, sequencing, error detection, and
reassembling the transmitted data.

Login Validation

After initialization is complete, a StorageTek library communicates its ID for login
validation. This ID is an IEEE-registered 64-byte identifier. The device
identification page (36 bytes) of the Inquiry command indicates the vendor-specific
portion of this ID. The vendor-specific portion of the ID includes the library's Port
name, Node name, and N_Port ID. This information is unique for each Fibre
Channel card in each library.
The remaining 28 bytes of the library's ID consist of:
5h (a Name Address Authority)
■
00104Fh (Sun StorageTek company ID)
■
Note – The following table shows the IEEE-registered format for the full 64-byte
identification scheme. The format includes the Name Address Authority (NAA),
company ID, and vendor-specific identifier.

TABLE 5-5 Library Identification Scheme

Most Significant Byte
63 60 59
NAA IEEE Company ID
5h 00 10 4Fh
You can view this ID through the "Lib Fibre I/F Config Menu." See the library's
operator's guide for instructions on accessing this menu.
Every device on the loop must have a unique ID for login validation.
All ports validate the logins by comparing Port Name, Node Name, and N_Port
ID. All three identifiers must match or this indicates the configuration has changed
and requires a Logout (LOGO).
A LOGO terminates all open exchanges between SCSI initiator and target.
52 SL500: Interface Reference Manual • July 2008
Least Significant Byte
36 35
Vendor Specific Identifier
(assigned per FC board)
00
Revision: F • 96122