物理dataguard:
默认的 protection mode 是: MAXIMUM PERFORMANCE (最大性能模式)
SQL> select dest_name,status,type,database_mode,recovery_mode,protection_mode,destination from v$archive_dest_status;
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LOG_ARCHIVE_DEST_1
VALID PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
/u01/oradata/log
LOG_ARCHIVE_DEST_2
VALID PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
10gpri
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LOG_ARCHIVE_DEST_3
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
LOG_ARCHIVE_DEST_4
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LOG_ARCHIVE_DEST_5
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
LOG_ARCHIVE_DEST_6
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
LOG_ARCHIVE_DEST_7
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LOG_ARCHIVE_DEST_8
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
LOG_ARCHIVE_DEST_9
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
LOG_ARCHIVE_DEST_10
INACTIVE PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
STANDBY_ARCHIVE_DEST
VALID PHYSICAL MOUNTED-STANDBY MANAGED MAXIMUM PERFORMANCE
DEST_NAME
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STATUS TYPE DATABASE_MODE RECOVERY_MODE PROTECTION_MODE
--------- -------------- --------------- ----------------------- --------------------
DESTINATION
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
/u01/oradata/log
11 rows selected.
SQL>
注:这里PHYSICAL Dataguard的个数应该是系统能够配置的最多dataguard数量10个。
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