Fujitsu MAX3073NC - SCSI,80, Dell DC961,Hard Drive Scsi Logical Interface Specifications page 228

Parameter Data Formats
An enable warning (EWASC) bit of zero indicates the target disables reporting of the warning. The
"MRIE" field is ignored when "DExcpt" is set to one and "EWASC" is set to zero. An "EWASC" bit of
one indicates warning reporting is enabled. The method for reporting the warning when the "EWASC"
bit is set to one is determined from the "MRIE" field.
If background functions are supported, an Enable Background Function (EBF) bit of one indicates the
target enables background functions. An "EBF" bit of zero indicates the target disables the functions.
The IDD disregards the specified value and operates according to the "Default" value (="0").
A Performance (Perf) bit of zero indicates that informational exception operations that are the cause of
delays are acceptable. A Perf bit of one indicates the target is not cause delays while doing informational
exception operations.
informational exceptions operations, thereby limiting the reporting of informational exception
conditions.
The Method of Reporting Informational Exceptions (MRIE) field indicates the methods that is used by
the target to report informational exception conditions. The priority of reporting multiple informational
exceptions is vendor specific.
4-44
A Perf bit set to one may cause the target to disable some or all of the
C141-C010