Datasheet

1.7 Extended Link Service
C141-C008 1-61
1.7.7 Reinstate recovery qualifier (RRQ/RRQ_ACC)
Figure 1.33 Reinstate recovery qualifier (RRQ/RRQ_ACC)
The initiator issues RRQ to the drive to notify the drive of reuse of Recovery
Qualifier (S_ID, D_ID, OX_ID, RX_ID, SEQ_CNT) aborted by ABTS. The drive
responds with RRQ_ACC when the frame of the received RRQ is correct.
The payload field of the RRQ/RRQ_ACC frame is described below.
Word xx and byte y of the payload are represented by [PL:Wxx/By].
(1) LS_Command code [PL:W00/B0]
12h: Indicates RRQ.
02h: Indicates RRQ_ACC.
(2) Originator S_ID [PL:W01/B1-3]
N_Port_ID of the initiator is set.
(3) OX_ID [PL:W02/B0-1]
OX_ID of Exchange aborted when the initiator previously issued ABTS.
(4) RX_ID [PL:W02/B2-3]
FFFFh: RX_ID of Exchange aborted when the initiator previously issued ABTS.
Drive responds with LS_RJT (03h, 17h) when RX_ID 0xFFFF of RRQ is
received.
(5) Association Header [PL:W03-10]
The drive neither supports nor checks this field.