执行rman target sys/Sap12345@MWEASDB auxiliary sys/Sap12345@MWEASDBDG的时候提示

1、在主库执行tnsping 

2、在备库执行ping

都是自己ping自己通，找备库不通。

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1、主库的tns设置

MWEASDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.4 )(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = MWEASDB)
)
)

LISTENER_MWEASDB =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.4 )(PORT = 1521))


MWEASDBDG =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.36.166)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = MWEASDBDG)
)
)

2、主库的监听设置

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.4)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)

----------------------------------------

3、备库的tns设置

# tnsnames.ora Network Configuration File: /u01/app/oracle/product/19.3.0/db_home1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

MWEASDBDG =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.36.166)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = MWEASDBDG)
)
)

LISTENER_MWEASDB =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.36.166)(PORT = 1521))


MWEASDB =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.3.4)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = MWEASDB)
)
)

5、备库的监听设置

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.36.166)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)

ADR_BASE_LISTENER = /u01/app/oracle