Hitachi Ultrastar 15K73 Reference Manual page 37

Initiator Detected Error (05
This message is sent from the host computer to the controller to indicate that a
retriable error (e.g., parity error with the SCSI bus) has occurred.
Abort(or Abort Task Set) (06
The controller will go to the BUS FREE phase following successful receipt of
this message. The controller will clear the active I/O process plus any queued
I/O process for the I_T_x nexus.
The pending data, status and queued I/O processes for any other I_T_x nexus
will not be cleared.
Note :
Message Reject (07
This message is sent from the host computer or controller to indicate that the
last received message is invalid or not supported. To indicate an intention to
send this message, the host computer must assert the ATN signal before
releasing the ACK signal of the REQ/ACK handshake for the message to be
rejected.
The controller switches into the message in phase before sending this message.
No Operation (08
This message is sent from the host computer in response to the message request
from the controller to indicate that it has no valid message to be sent to the host
computer.
Message Party Error (09
This message is sent from the host computer to the controller to indicate that a
parity error is found in one or more bytes of the last received message. To
indicate an intention to send this message, the host computer must assert the
ATN signal before releasing the ACK signal of the REQ/ACK handshake for the
message in parity error.
Linked Command Complete (0A
This message is sent from the controller to the host computer to indicate that
the execution of a linked command ( with the flag bit set to zero ) has completed
and that status has been sent.
The controller goes to the Command phase after sending this message.
3
H
H
If only I_T nexus has been established, no IDENTIFY message is
available, the controller will go to the BUS FREE phase. No pending
data, status and no other I/O process will be affected.
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H
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OEM MANUAL
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