Fujitsu MAN3367 User Manual
C141-E124-01EN
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1.5.2
Response and Release Condition at UNIT ATTENTION Condition Hold State
A UNIT ATTENTION condition generated by the IDD by the occurrence of the previously
mentioned events is held individually for each INIT and it is held until it is released by the INIT it
is held for issuing the commands specified below.
mentioned events is held individually for each INIT and it is held until it is released by the INIT it
is held for issuing the commands specified below.
When the IDD is holding a UNIT ATTENTION condition, if the IDD receives a command from
the INIT that the UNIT ATTENTION condition is held for, it performs one of the following
operations depending on the type of command issued.
the INIT that the UNIT ATTENTION condition is held for, it performs one of the following
operations depending on the type of command issued.
(1)
Commands other than the INQUIRY and REQUEST SENSE commands
The IDD reports a CHECK CONDITION status to the issue command. The UNIT ATTENTION
condition for that INIT is then cleared by the CHECK CONDITION status report. The sense key of the
sense data generated at this time is UNIT ATTENTION [=6] and the sense codes shown below indicate
the event that generated the UNIT ATTENTION condition.
condition for that INIT is then cleared by the CHECK CONDITION status report. The sense key of the
sense data generated at this time is UNIT ATTENTION [=6] and the sense codes shown below indicate
the event that generated the UNIT ATTENTION condition.
x Power on
[=29-01]
x Reset
[=29-02]
x TARGET RESET
[=29-03]
x Transciever Mode Changed to SINGLE-ENDED
[=29-05]
x Transciever Mode Changed to LVD
[=29-06]
x Mode parameters changed
[=2A-01]
x Reservations Preempted
[=2A-03]
x Reservations Released
[=2A-04]
x Registrations Preempted
[=2A-05]
x Commands cleared by another INIT
[=2F-00]
x Spindle synchronized
[=5C-01]
x Spindle not synchronized
[=5C-02]
x Microcode has been changed
[=3F-01]
x Changed Operating Definition
[=3F-02]
x Device Identifier Changed
[=3F-05]
However, if the IDD responds with a BUSY status or QUEUE FULL status due to its not being able to
receive the command that was issued, the UNIT ATTENTION condition is not cleared.
receive the command that was issued, the UNIT ATTENTION condition is not cleared.
The above CHECK CONDITION status response that is the cause of the UNIT ATTENTION
condition hold can be prohibited by the specification of the CHANGE DEFINITION command.
When the CHECK CONDITION status response is prohibited, the IDD executes the commands it
receives normally, except in the case of a RESERVATION CONFLICT status, BUSY status or
QUEUE FULL status. In this case, the UNIT ATTENTION condition for the INIT that issued that
command is cleared.
condition hold can be prohibited by the specification of the CHANGE DEFINITION command.
When the CHECK CONDITION status response is prohibited, the IDD executes the commands it
receives normally, except in the case of a RESERVATION CONFLICT status, BUSY status or
QUEUE FULL status. In this case, the UNIT ATTENTION condition for the INIT that issued that
command is cleared.
See Section 3.1.4 “CHANGE DEFINITION” concerning setting details.