User guide

SC3500 User Guide Ver 1.3 March 8, 2005 Page 15 of 28
3.3.10 Mode Sense
The MODE SENSE (6) command provides a means for a target to report parameters to
the initiator. It is a complementary command to the MODE SELECT (6) command.
Mode Sense CDB
A disable block descriptors (DBD) bit of zero indicates that the target may return zero or
more block descriptors in the returned MODE SENSE data, at the target’s discretion. A
DBD bit of one specifies that the target shall not return any block descriptors in the
returned MODE SENSE data. The page control (PC) field defines the type of mode
parameter values to be returned in the mode pages. The page code specifies which
mode page to return.