Exception Handling; Phase Sequencing - Tandberg Data SLR7-140 PROGRAMMER Manual

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Tandberg Data

26.5. Exception Handling

See sections on
Deferred Errors and Buffer Parity Errors.
If the PF bit
terminate the
CONDITION status. No diagnostic tests will be performed.
The Error Code will be set to I
If the ST, DOF and UOF bits are not within the legal
values, the Drive will terminate the SEND DIAGNOSTICS
command with CHECK CONDITION status. No diagnostic tests
will be performed. Error Code will be set to I
CDB.
IN
If ST bit is set to one and parameter list length is not
zero, the Drive
command with CHECK CONDITION status. No diagnostic tests
will be performed. The Error Code will be set to I
CDB.
FIELD IN
If the Parameter List Length is not within the legal
value, the SEND DIAGNOSTICS command will be terminated
with CHECK CONDITION status. No diagnostic tests will be
performed. The Error Code will be set to I
CDB.
If the Parameter List has any illegal values, the SEND
DIAGNOSTICS command
CONDITION status. No diagnostic tests will be performed.
The Error Code will be set to I
If DOF bit is set to one but the media is not present,
the SEND DIAGNOSTICS command will be terminated with
CHECK CONDITION
performed. The Error Code will be set to M

26.6. Phase Sequencing

In this section the possible SCSI-bus phase sequences
during execution of the command are described. Section
3.2.1 has more details about the generic phases in the
brackets.
:= <initiator-part> <message-out> <command> <disconnect> <reconnect>
<completed>
The Drive will
transferred. The
diagnostic activities are executed.
26-5 Tandberg SLR Product Line SCSI Functional Specifications
Error Conditions
is not set to
SEND DIAGNOSTICS
NVALID FIELD IN
will terminate
will be
NVALID FIELD IN PARAMETER LIST
status. No diagnostic
disconnect when
Drive will reconnect
Send Diagnostics
For All Commands,
zero, the Drive
command with
CDB.
NVALID FIELD
the SEND DIAGNOSTICS
NVALID FIELD IN
terminated with
tests will
EDIUM NOT PRESENT
the CDB has
when all
will
CHECK
NVALID
CHECK
.
be
.
been
the