Quantum Audio STT2401A Manuel D’Utilisation

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ATAPI Interface 
Chapter 5 
Seagate Travan 40 Product Manual 
Page 59 
 
MRIE (Default set to 0x3): This field indicates the method used by the target to 
report informational exception conditions (note that this is standard SCSI terminology 
and is not related in any way to the “Information” severity level for the flags). The 
priority of reporting informational exception conditions is vendor specific. If the 
informational exception condition was generated by an event that caused a real 
Check Condition to occur, then this real Check Condition will over-ride (i.e. be used 
instead of) the Check Condition defined in MRIE modes 0x1 to 0x5. The values 
defined for this field are: 
0×0: 
No reporting of informational exception conditions. This method 
instructs the device server to not report information exception conditions 
0×1: 
Asynchronous Event Reporting. This method instructs the device server 
to report information exception conditions by using the rules for asynchronous event 
reporting as described in the SCSI-3 Architecture Model and the relevant protocol 
standard. The Sense Key shall be set to RECOVERED ERROR and the additional 
Sense Code shall indicate the cause of the information exception condition (which is 
5D00 for a TapeAlert event). 
0×2: 
Generate Unit Attention. This method instructs the device server to report 
information exception conditions by returning a Check Condition status on the next 
SCSI command (excluding Inquiry and Request Sense) after an informational 
exception condition was detected. The Sense Key shall be set to Unit Attention and 
the additional Sense Code shall indicate the cause of the information exception 
condition (which is 5D00 for a TapeAlert event). The command that has the Check 
Condition
 shall NOT be executed before the informational exception condition is 
reported (and thus needs to be repeated). 
0×3: 
Conditionally generate Recovered Error. This method instructs the device 
server to report information exception conditions, if reporting of recovered errors is 
allowed, by returning a Check Condition status on the next SCSI command 
(excluding Inquiry and Request Sense) after an informational exception condition 
was detected. The Sense Key shall be set to RECOVERED ERROR and the 
additional Sense Code shall indicate the cause of the information exception condition 
(which is 5D00 for a TapeAlert event). The command that has the Check Condition 
shall complete without error before any exception condition may be reported (and 
thus does NOT need to be repeated). 
0×4: 
Unconditionally generate Recovered Error. This method instructs the 
device server to report information exception conditions, regardless of the value of 
the per bit of the error recovery parameters mode page, by returning a Check 
Condition
 status on the next SCSI command (excluding Inquiry and Request Sense
after an informational exception condition was detected. The Sense Key shall be set 
to Recovered Error and the additional Sense Code shall indicate the cause of the 
information exception condition (which is 5D00 for a TapeAlert event). The command 
that has the Check Condition shall complete without error before any exception 
condition may be reported (and thus does NOT need to be repeated). 
0×5: 
Generate No Sense. This method instructs the device server to report 
information exception conditions by returning a Check Condition status on the next 
SCSI command (excluding Inquiry and Request Sense) after an informational 
exception condition was detected. The Sense Key shall be set to No Sense and the 
additional Sense Code shall indicate the cause of the information exception condition 
(which is 5D00 for a TapeAlert event). The command that has the Check Condition 
shall complete without error before any exception condition may be reported (and 
thus does NOT need to be repeated).