Fujitsu MBA3073 SERIES Technical Manual page 197

g. SAVE DATA POINTER
When rejecting this message for disconnection of the SCSI bus, the HDD continues the
currently executing command without disconnection as the DISCONNECT message is
rejected.
h. SIMPLE
When this message sent next to the IDENTIFY message at reconnection is rejected, the HDD
immediately enters the BUS FREE phase and terminates the command which has requested
the reconnection abnormally. No further reconnection for the command is attempted, and the
HDD does report the command completion (status and message) for the aborted command.
Then, the HDD creates the sense information with Sense Key/Additional Sense Code of
"ABORTED COMMAND [=B]/Message Error [=43-00]".
i. SYNCHRONOUS DATA TRANSFER REQUEST
The HDD assumes that the INIT does not support the synchronous transfer mode, and
continues the command execution using the asynchronous transfer mode.
j. WIDE DATA TRANSFER REQUEST
The HDD assumes that the INIT does not support the wide transfer mode. The HDD sets the
data transfer width to the 8-bit mode and the asynchronous mode, and continues command
execution.
k. PARALLEL PROTOCOL REQUEST
The HDD assumes that the INIT does not support the DT DATA IN/OUT transfer mode. The
HDD sets the data transfer mode to the 8-bit width mode and the asynchronous mode, and
continues command execution.
(7) Reselection timeout
If the INIT does not respond within the specified time period (Selection Timeout Delay: 250 ms)
in the RESELECTION phase, the HDD considers that a reselection timeout has occurred. In this
case, the HDD executes timeout processing of RESELECTION phase based on the protocol of
SCSI bus phase, and it enters the BUS FREE phase. (For the timeout processing, see Section
1.6.4.)
After entering the BUS FREE phase, the HDD waits at least 200 μs and retries the reselection.
If the reselection retries have failed, the HDD abnormally terminates the command which is
requiring the reconnection. In such case, the command is never reconnected and the HDD does
not report the command completion (the status and message). The HDD generates the sense data
which indicates the "ABORTED COMMAND [=B]/Select/reselect failure [=45-00]" sense
key/sense code.
Note:
190 C141-C015