SQL> SELECT DATABASE_ROLE, DB_UNIQUE_NAME INSTANCE, OPEN_MODE, -
PROTECTION_MODE, PROTECTION_LEVEL, SWITCHOVER_STATUS -
FROM V$DATABASE;
SQL> SELECT FS_FAILOVER_STATUS FSFO_STATUS, FS_FAILOVER_CURRENT_TARGET -
TARGET_STANDBY, FS_FAILOVER_THRESHOLD THRESHOLD, -
FS_FAILOVER_OBSERVER_PRESENT OBS_PRES -
FROM V$DATABASE