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Fibre Channel Interface Manual, Rev. D 85
9.2.7 Read Link Error Status Block (RLS)
Read Link Error Status Block (RLS) is sent by the initiator to request the drive to return the Fibre Channel link
error information. The error information is contained in the Link Error Status Block (LESB) that is returned in the
accept to the RLS. The drive maintains a separate LESB for each port.
Field definitions (listed alphabetically)
LS Command Code (Link Services Command Code)
0Fh RLS Payload.
Port Identifier
This field is interpreted to determine whether to return the Link Error Status Block for port A or B.
0 Return the LESB for the port the RLS was received on.
1 Return the LESB for port A.
2 Return the LESB for port B.
Others LS_RJT is returned with Invalid N_Port Identifier.
Table 45: RLS Payload
Bit
Byte
76543210
000001111
100000000
200000000
300000000
LS Command Code
4
Reserved
5
Port Identifier6
7
Table
number
45
45