The value of tHsmdaSchedulerPlcyLvl3GrpId specifies the group this
HSMDA scheduler policy level belongs to. If the value is '0', this
level is not assigned to a scheduler policy group. This object may not
be set simultaneously with tHsmdaSchedulerPlcyLvl3Rate.
Setting tHsmdaSchedulerPlcyLvl3GrpId to non-default value while
tHsmdaSchedulerPlcyLvl3Rate is non-default, results in the level being
added to the group and tHsmdaSchedulerPlcyLvl3Rate being set to
default.
Setting tHsmdaSchedulerPlcyLvl3GrpId to default value results in the
level being removed from any group and tHsmdaSchedulerPlcyLvl3WgtInGrp
being set to default.