GV$INCMETER_SUMMARY definition in Oracle Database 11.2
GV$INCMETER_SUMMARY
select
inst_id, -- INST_ID NUMBER
decode( -- SEVERITY_INDEX VARCHAR2(14)
severity_idx, 0, 'NORMAL', 1, 'WARNING', 2, 'CRITICAL', 'UNKNOWN '),
critical_incidents, -- CRITICAL_INICDENTS NUMBER
warning_incidents, -- WARNING_INCIDENTS NUMBER
last_hour_incidents, -- LAST_HOUR_INCIDENTS NUMBER
ctime, -- CREATE_TIME TIMESTAMP(13) WITH TIME ZONE
otictime, -- OLDEST_TRANSIENT_INC_CTIME TIMESTAMP(13) WITH TIME ZONE
opictime, -- OLDEST_PERSISTENT_INC_CTIME TIMESTAMP(13) WITH TIME ZONE
lictime -- LATEST_INC_CTIME TIMESTAMP(13) WITH TIME ZONE
from
x$dbkincmetsummary