Fujitsu MAT3300FC 用户手册
Command Processing
2-20
C141-C008
(3) Commands cleared by another INIT
If the following events have occurred, the command which is currently being
executed and commands in the queue are cleared, and this Unit Attention
condition is generated.
executed and commands in the queue are cleared, and this Unit Attention
condition is generated.
•
The CLEAR TASK SET is issued by any INIT.
However, the Unit Attention condition hold state is not entered in the INIT
that issued the CLEAR TASK SET, the INIT that issued the MODE SELECT
or MODE SELECT EXTENDED command or the INIT that canceled the
sense hold state.
that issued the CLEAR TASK SET, the INIT that issued the MODE SELECT
or MODE SELECT EXTENDED command or the INIT that canceled the
sense hold state.
2.5.2 Response and release condition at UNIT ATTENTION condition hold state
A Unit Attention condition generated by the IDD due to the occurrence of one of
the above-mentioned events is held for each INIT individually, and this condition
is held until the Unit Attention condition is cleared by an INIT which is the object
of the hold issues the commands specified below.
the above-mentioned events is held for each INIT individually, and this condition
is held until the Unit Attention condition is cleared by an INIT which is the object
of the hold issues the commands specified below.
When the IDD is holding the Unit Attention condition, if it receives a command
from an INIT which is the object of the hold, one of the operations below,
depending on the type of command issued, is performed by the IDD.
from an INIT which is the object of the hold, one of the operations below,
depending on the type of command issued, is performed by the IDD.
(1) Commands other than the INQUIRY and REQUEST SENSE commands
The IDD reports the CHECK CONDITION status in response to the issued
command. Through the CHECK CONDITION status report, the Unit Attention
condition with respect to that INIT is cleared. The sense key for the sense data
generated at this time is UNIT ATTENTION [= 6] and the sense code shows the
event which generated the Unit Attention condition, as shown below.
command. Through the CHECK CONDITION status report, the Unit Attention
condition with respect to that INIT is cleared. The sense key for the sense data
generated at this time is UNIT ATTENTION [= 6] and the sense code shows the
event which generated the Unit Attention condition, as shown below.
•
Power on
[=29-01]
•
TARGET RESET
[=29-03]
•
Mode parameters changed
[=2A-01]
•
Commands cleared by another INIT [=2F-00]
•
Micro code has been change
[=3F-01]
However, if the IDD responds with a TASK SET FULL because the issued
command is not received, the Unit Attention condition is not cleared.
command is not received, the Unit Attention condition is not cleared.
(2) INQUIRY command
The INQUIRY command is executed normally, but the Unit Attention condition
is not cleared.
is not cleared.
(3) REQUEST SENSE command
The IDD executes the REQUEST SENSE command normally, and sends the sense
data which show the Unit Attention condition which is currently being held to the
INIT. At this time, the Unit Attention condition with respect to that INIT is cleared.
data which show the Unit Attention condition which is currently being held to the
INIT. At this time, the Unit Attention condition with respect to that INIT is cleared.