Service使用referred和avileable固定會話到一個節點，當機後會切換到另一個節點
Service使用referred和avileable固定session連線到一臺資料庫伺服器上，這臺資料庫伺服器當機後會切換到另一臺資料庫伺服器上
管理員管理的DB裡，service分為：
- preferred instance：服務啟動的時候，在哪個例項上啟動，該例項就是preferred instance。
- available instance：服務所在的例項崩潰，叢集件會在另外一個available instance裡啟動該服務。
必須在oracle使用者下執行
[root@node1 ~]# srvctl add service -d orcl -s srv1 -r orcl1 -a orcl2
PRCD-1026 : Failed to create service srv1 for database orcl
PRKH-1014 : Current user "root" is not the oracle owner user "oracle" of oracle home "/u01/app/oracle/product/11.2.0/dbhome_1"
[oracle@node1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 19:56:25
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:19:59
Uptime 0 days 0 hr. 36 min. 49 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.20)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.22)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 19:55:48
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 0 hr. 31 min. 29 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
新增一個service：srv1，orcl1是prefer，orcl2是available：
srvctl add service -d orcl -s srv1 -r orcl1 -a orcl2
srvctl start service -d orcl -s srv1
[oracle@node1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 20:09:06
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:19:59
Uptime 0 days 0 hr. 49 min. 12 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.20)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.22)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "srv1" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 20:09:10
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 0 hr. 44 min. 44 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
異常關閉orcl1，再過一會，會看到srv1在orcl2上啟動了。
[root@node1 ~]# crsctl stop crs
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 21:11:40
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 1 hr. 47 min. 28 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "srv1" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
可以為服務新增多個preferred例項，這樣可以不需要available例項：
srvctl add service -d orcl -s srv2 -r orcl1,orcl2
srvctl start service -d orcl -s srv2
[oracle@node1 ~]$ srvctl status service -d orcl -s srv2
Service srv2 is running on instance(s) orcl1,orcl2
service可以只定義preferred例項，而不定義available例項。但是這樣就沒有HA了。
這樣當service所在的例項崩潰以後，該service不會failover到另外一個例項上去。
把srv1從orcl1上執行，轉移到orcl2上執行：
srvctl relocate service -d orcl -s srv1 -i orcl1 -t orcl2
管理員管理的DB裡，service分為：
- preferred instance：服務啟動的時候，在哪個例項上啟動，該例項就是preferred instance。
- available instance：服務所在的例項崩潰，叢集件會在另外一個available instance裡啟動該服務。
必須在oracle使用者下執行
[root@node1 ~]# srvctl add service -d orcl -s srv1 -r orcl1 -a orcl2
PRCD-1026 : Failed to create service srv1 for database orcl
PRKH-1014 : Current user "root" is not the oracle owner user "oracle" of oracle home "/u01/app/oracle/product/11.2.0/dbhome_1"
[oracle@node1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 19:56:25
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:19:59
Uptime 0 days 0 hr. 36 min. 49 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.20)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.22)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 19:55:48
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 0 hr. 31 min. 29 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
新增一個service：srv1，orcl1是prefer，orcl2是available：
srvctl add service -d orcl -s srv1 -r orcl1 -a orcl2
srvctl start service -d orcl -s srv1
[oracle@node1 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 20:09:06
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:19:59
Uptime 0 days 0 hr. 49 min. 12 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.20)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.22)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "srv1" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 20:09:10
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 0 hr. 44 min. 44 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
異常關閉orcl1，再過一會，會看到srv1在orcl2上啟動了。
[root@node1 ~]# crsctl stop crs
[oracle@node2 ~]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 24-AUG-2017 21:11:40
Copyright (c) 1991, 2011, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date 24-AUG-2017 19:24:29
Uptime 0 days 1 hr. 47 min. 28 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/grid/diag/tnslsnr/node2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.24)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.92.23)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
Service "srv1" has 1 instance(s).
Instance "orcl2", status READY, has 1 handler(s) for this service...
The command completed successfully
可以為服務新增多個preferred例項，這樣可以不需要available例項：
srvctl add service -d orcl -s srv2 -r orcl1,orcl2
srvctl start service -d orcl -s srv2
[oracle@node1 ~]$ srvctl status service -d orcl -s srv2
Service srv2 is running on instance(s) orcl1,orcl2
service可以只定義preferred例項，而不定義available例項。但是這樣就沒有HA了。
這樣當service所在的例項崩潰以後，該service不會failover到另外一個例項上去。
把srv1從orcl1上執行，轉移到orcl2上執行：
srvctl relocate service -d orcl -s srv1 -i orcl1 -t orcl2
來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/30126024/viewspace-2144123/，如需轉載，請註明出處，否則將追究法律責任。
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