User Manual

SCSI Commands Reference Manual, Rev. J 416
www.seagate.com Parameters for direct access devices
EWASC (Enable Warning) bit
0 If the enable warning (EWASC) bit is set to zero, the device server shall disable reporting of the warning. The MRIE field is ignored when
DEXCPT is set to one and EWASC is set to zero.
1 If the EWASC bit is set to one, warning reporting shall be enabled. The method for reporting the warning when the EWASC bit is set to
one is determined from the MRIE field.
DEXCPT (Disable Exception Control) bit
0 A disable exception control (DEXCPT) bit set to zero indicates the failure prediction threshold exceeded reporting shall be enabled. The
method for reporting the failure prediction threshold exceeded when the DEXCPT bit is set to zero is determined from the MRIE field.
1 A DEXCPT bit set to one indicates the device server shall disable reporting of the failure prediction threshold exceeded. The MRIE field is
ignored when DEXCPT is set to one and EWASC is set to zero.
TEST bit
1 If DEXCPT bit is set to zero and the TEST bit set to one, then the device server shall create a test device failure as specified by the MRIE
field, INTERVAL TIMER field, and REPORT COUNT field (see table 390). The test device failure shall be reported with the additional sense
code set to FAILURE PREDICTION THRESHOLD EXCEEDED (FALSE). If both the TEST bit and the DEXCPT bit are set to one, then the MODE
SELECT command shall be terminated with CHECK CONDITION status, with the sense key set to ILLEGAL REQUEST, and the additional
sense code set to INVALID FIELD IN PARAMETER LIST.
0 A TEST bit set to zero shall instruct the device server not to generate any test device failure notifications.
EBACKERR (enable background error) bit
0 An enable background error (EBACKERR) bit set to zero indicates the target shall disable reporting of background self-test errors (SPC-5)
and background scan errors (see SBC-4).
1 An EBACKERR bit set to one indicates reporting of background self-test errors and background scan errors shall be enabled. The method
for reporting background self-test errors and background scan errors is determined by contents of the mrie field. Background self-test
errors and background scan errors shall be reported as soon as the method specified in the mrie field occurs (i.e., the interval timer field
and report count field do not apply for background self-test errors and background scan errors).
LOGERR (Log Error) bit
0 If the log errors (LOGERR) bit is set to zero, the logging of informational exception conditions by a device server is vendor specific.
1 If the LOGERR bit is set to one, the device server shall log informational exception conditions.
MRIE (Method Of Reporting Informational Exceptions) field
The value in the method of reporting informational exceptions (MRIE) field (see table 390) defines the method that shall be used
by the device server to report informational exception conditions. The priority of reporting multiple information exceptions is
vendor specific.