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M3099GX/GH OEM Manual 3-51
INTERFACE
The sense key, additional sense code and additional sense code
qualifier provide a hierachy of information. The intention of the
hierarchy is to provide a top down approach for an initiator to
determine information relating to the error and exception
conditions. The sense key provides generic categories in which error
and exception condition can be reported. Initiators would typically
use sense keys for high level error recovery procedures. Additional
sense codes provide further detail describing the sense key.
Additional sense code qualifiers add further detail to the additional
sense code. The additional sense code and additional sense code
qualifier can be used by initiators where sophisticated error recovery
procedures require detailed information describing the error and
exception conditions.
The sense key field is mandatory and indicates generic information
describing an error or exception condition. The sense key used are
defined in Table 3.29.
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