oracle adg switch over,Oracle11gr2_ADG管理之switchover补充
之前演示的switchver總是提示下面的錯誤,并且需要人工干預:
DGMGRL> switchover to snewtest;
Warning: You are no longer connected to ORACLE.
Please complete the following steps to finish switchover:
start up instance "newtest" of database "newtest"
解決方案
1.主庫上配置 listener.ora
[oracle@localhost admin]$ vi listener.ora
# listener.ora Network Configuration File: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = newtest)
(ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1/)
(SID_NAME = newtest)
)
(SID_DESC =
(GLOBAL_DBNAME = newtest_DGMGRL)
(ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1/)
(SID_NAME = newtest)
)
)
2.備庫上配置 listener.ora
[oracle@localhost ~]$ cd /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/
[oracle@localhost admin]$ vi listener.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = newtest)
(ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1/)
(SID_NAME = newtest)
)
(SID_DESC =
(GLOBAL_DBNAME = snewtest_DGMGRL)
(ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1/)
(SID_NAME = newtest)
)
)
3. 主備庫重啟lsrnctl
lsrnctl stop
lsrnctl start
任何庫上執(zhí)行切換
[oracle@localhost admin]$ dgmgrl sys/oracle@newtest
DGMGRL for Linux: Version 11.2.0.4.0 - 64bit Production
Copyright (c) 2000, 2009, Oracle. All rights reserved.
Welcome to DGMGRL, type "help" for information.
Connected.
切換到備庫
DGMGRL> swithover to snewtest
Unrecognized command "swithover", try "help"
DGMGRL> switchover to snewtest;
Performing switchover NOW, please wait...
Operation requires a connection to instance "newtest" on database "snewtest"
Connecting to instance "newtest"...
Connected.
New primary database "snewtest" is opening...
Operation requires startup of instance "newtest" on database "newtest"
Starting instance "newtest"...
ORACLE instance started.
Database mounted.
Database opened.
Switchover succeeded, new primary is "snewtest"
切換回主庫
DGMGRL> switchover to newtest;
Performing switchover NOW, please wait...
Operation requires a connection to instance "newtest" on database "newtest"
Connecting to instance "newtest"...
Connected.
New primary database "newtest" is opening...
Operation requires startup of instance "newtest" on database "snewtest"
Starting instance "newtest"...
ORACLE instance started.
Database mounted.
Database opened.
Switchover succeeded, new primary is "newtest"
這次的切換變得十分順利 不需要人工干預了
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