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学习笔记:Oracle 12C RAC hub AND leaf 相互转换

时间:2016-06-16 22:36   来源:Oracle研究中心   作者:惜分飞   点击:

天萃荷净 最新接触Oracle最新版本数据库12C,学习一下12C RAC hub AND leaf 相互转换

1.查询Oracle 12C数据库版本

--集群状态
[root@rac1 ~]# crsctl status res -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.DATA.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDB_NEW.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDG.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.net1.network
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.ons
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.proxy_advm
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac1                     STABLE
ora.LISTENER_SCAN2.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER_SCAN3.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.MGMTLSNR
      1        ONLINE  ONLINE       rac2                     169.254.177.226 10.1
                                                             .1.104,STABLE
ora.asm
      1        ONLINE  ONLINE       rac1                     STABLE
      2        ONLINE  ONLINE       rac2                     STABLE
      3        OFFLINE OFFLINE                               STABLE
ora.cvu
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.mgmtdb
      1        ONLINE  ONLINE       rac2                     Open,STABLE
ora.oc4j
      1        ONLINE  ONLINE       rac2                     STABLE
ora.ora12c.db
      1        ONLINE  ONLINE       rac1                     Open,STABLE
      2        ONLINE  ONLINE       rac2                     Open,STABLE
ora.rac1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.scan2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan3.vip
      1        ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------

--rac运行在flex模式
[root@rac1 ~]#  crsctl get cluster mode status
Cluster is running in "flex" mode

--asm运行在flex模式
[grid@rac1 ~]$ asmcmd
ASMCMD> showclustermode
ASM cluster : Flex mode enabled

--节点角色
[root@rac1 ~]# crsctl get node role config
Node 'rac1' configured role is 'hub'
[root@rac2 ~]# crsctl get node role config
Node 'rac2' configured role is 'hub'

2.12C数据库转换hub to leaf

--转换hub为leaf
[root@rac1 ~]# crsctl set node role leaf
CRS-4408: Node 'rac1' configured role successfully changed; restart Oracle High Availability Services for new role to take effect.

--关闭集群
[root@rac1 ~]# crsctl stop crs
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER_SCAN1.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.SYSDB_NEW.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.DATA.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.SYSDG.dg' on 'rac1'
CRS-2673: Attempting to stop 'ora.ora12c.db' on 'rac1'
CRS-2673: Attempting to stop 'ora.proxy_advm' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.rac1.vip' on 'rac1'
CRS-2677: Stop of 'ora.LISTENER_SCAN1.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.scan1.vip' on 'rac1'
CRS-2677: Stop of 'ora.rac1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.rac1.vip' on 'rac2'
CRS-2677: Stop of 'ora.ora12c.db' on 'rac1' succeeded
CRS-2677: Stop of 'ora.scan1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.scan1.vip' on 'rac2'
CRS-2676: Start of 'ora.rac1.vip' on 'rac2' succeeded
CRS-2677: Stop of 'ora.SYSDB_NEW.dg' on 'rac1' succeeded
CRS-2676: Start of 'ora.scan1.vip' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.LISTENER_SCAN1.lsnr' on 'rac2'
CRS-2677: Stop of 'ora.DATA.dg' on 'rac1' succeeded
CRS-2677: Stop of 'ora.SYSDG.dg' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.ASMNET1LSNR_ASM.lsnr' on 'rac1'
CRS-2676: Start of 'ora.LISTENER_SCAN1.lsnr' on 'rac2' succeeded
CRS-2677: Stop of 'ora.proxy_advm' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ASMNET1LSNR_ASM.lsnr' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.ons' on 'rac1'
CRS-2677: Stop of 'ora.ons' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.net1.network' on 'rac1'
CRS-2677: Stop of 'ora.net1.network' on 'rac1' succeeded
CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'rac1' has completed
CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.storage' on 'rac1'
CRS-2673: Attempting to stop 'ora.crf' on 'rac1'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac1'
CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac1'
CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'rac1'
CRS-2677: Stop of 'ora.storage' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.asm' on 'rac1'
CRS-2677: Stop of 'ora.drivers.acfs' on 'rac1' succeeded
CRS-2677: Stop of 'ora.crf' on 'rac1' succeeded
CRS-2677: Stop of 'ora.mdnsd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.gpnpd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.asm' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'rac1'
CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac1'
CRS-2677: Stop of 'ora.evmd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'rac1'
CRS-2677: Stop of 'ora.gipcd' on 'rac1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac1' has completed
CRS-4133: Oracle High Availability Services has been stopped.

--启动集群
[root@rac1 ~]# crsctl start crs -wait
CRS-4123: Starting Oracle High Availability Services-managed resources
CRS-2672: Attempting to start 'ora.mdnsd' on 'rac1'
CRS-2672: Attempting to start 'ora.evmd' on 'rac1'
CRS-2676: Start of 'ora.evmd' on 'rac1' succeeded
CRS-2676: Start of 'ora.mdnsd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'rac1'
CRS-2676: Start of 'ora.gpnpd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'rac1'
CRS-2676: Start of 'ora.gipcd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac1'
CRS-2676: Start of 'ora.cssdmonitor' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'rac1'
CRS-2672: Attempting to start 'ora.diskmon' on 'rac1'
CRS-2676: Start of 'ora.diskmon' on 'rac1' succeeded
CRS-2789: Cannot stop resource 'ora.diskmon' as it is not running on server 'rac1'
CRS-2676: Start of 'ora.cssd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'rac1'
CRS-2672: Attempting to start 'ora.ctssd' on 'rac1'
CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'rac1' succeeded
CRS-2676: Start of 'ora.ctssd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.storage' on 'rac1'
CRS-2676: Start of 'ora.storage' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.crf' on 'rac1'
CRS-2676: Start of 'ora.crf' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.crsd' on 'rac1'
CRS-2676: Start of 'ora.crsd' on 'rac1' succeeded
CRS-6017: Processing resource auto-start for servers: rac1
CRS-6016: Resource auto-start has completed for server rac1
CRS-6024: Completed start of Oracle Cluster Ready Services-managed resources
CRS-4123: Oracle High Availability Services has been started.

--hub转换为leaf后状态
[root@rac1 ~]# crsctl stat res -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr
               ONLINE  ONLINE       rac2                     STABLE
ora.DATA.dg
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDB_NEW.dg
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDG.dg
               ONLINE  ONLINE       rac2                     STABLE
ora.net1.network
               ONLINE  ONLINE       rac2                     STABLE
ora.ons
               ONLINE  ONLINE       rac2                     STABLE
ora.proxy_advm
               ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER_SCAN2.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER_SCAN3.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.MGMTLSNR
      1        ONLINE  ONLINE       rac2                     169.254.177.226 10.1
                                                             .1.104,STABLE
ora.asm
      1        ONLINE  OFFLINE                               STABLE
      2        ONLINE  ONLINE       rac2                     STABLE
      3        OFFLINE OFFLINE                               STABLE
ora.cvu
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.mgmtdb
      1        ONLINE  ONLINE       rac2                     Open,STABLE
ora.oc4j
      1        ONLINE  ONLINE       rac2                     STABLE
ora.ora12c.db
      1        ONLINE  OFFLINE                               Instance Shutdown,ST
                                                             ABLE
      2        ONLINE  ONLINE       rac2                     Open,STABLE
ora.rac1.vip
      1        ONLINE  INTERMEDIATE rac2                     FAILED OVER,STABLE
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan1.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan3.vip
      1        ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------

--集群角色
[root@rac1 ~]# crsctl get node role config
Node 'rac1' configured role is 'leaf'
[root@rac2 ~]# crsctl get node role config
Node 'rac2' configured role is 'hub'

3.12C数据库leaf转换为hub

--leaf转换为hub
[root@rac1 ~]# crsctl set node role hub
CRS-4408: Node 'rac1' configured role successfully changed; restart Oracle High Availability Services for new role to take effect.

--关闭集群
[root@rac1 ~]# crsctl stop crs
CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'rac1'
CRS-2673: Attempting to stop 'ora.crsd' on 'rac1'
CRS-2677: Stop of 'ora.crsd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.storage' on 'rac1'
CRS-2673: Attempting to stop 'ora.mdnsd' on 'rac1'
CRS-2673: Attempting to stop 'ora.gpnpd' on 'rac1'
CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'rac1'
CRS-2677: Stop of 'ora.storage' on 'rac1' succeeded
CRS-2677: Stop of 'ora.drivers.acfs' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.crf' on 'rac1'
CRS-2673: Attempting to stop 'ora.ctssd' on 'rac1'
CRS-2673: Attempting to stop 'ora.evmd' on 'rac1'
CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'rac1'
CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'rac1' succeeded
CRS-2677: Stop of 'ora.gpnpd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.crf' on 'rac1' succeeded
CRS-2677: Stop of 'ora.evmd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.mdnsd' on 'rac1' succeeded
CRS-2677: Stop of 'ora.ctssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.cssd' on 'rac1'
CRS-2677: Stop of 'ora.cssd' on 'rac1' succeeded
CRS-2673: Attempting to stop 'ora.gipcd' on 'rac1'
CRS-2677: Stop of 'ora.gipcd' on 'rac1' succeeded
CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'rac1' has completed
CRS-4133: Oracle High Availability Services has been stopped.

--启动集群
[root@rac1 ~]# crsctl start crs -wait
CRS-4123: Starting Oracle High Availability Services-managed resources
CRS-2672: Attempting to start 'ora.mdnsd' on 'rac1'
CRS-2672: Attempting to start 'ora.evmd' on 'rac1'
CRS-2676: Start of 'ora.evmd' on 'rac1' succeeded
CRS-2676: Start of 'ora.mdnsd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'rac1'
CRS-2676: Start of 'ora.gpnpd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'rac1'
CRS-2676: Start of 'ora.gipcd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'rac1'
CRS-2676: Start of 'ora.cssdmonitor' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'rac1'
CRS-2672: Attempting to start 'ora.diskmon' on 'rac1'
CRS-2676: Start of 'ora.diskmon' on 'rac1' succeeded
CRS-2789: Cannot stop resource 'ora.diskmon' as it is not running on server 'rac1'
CRS-2676: Start of 'ora.cssd' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.cluster_interconnect.haip' on 'rac1'
CRS-2672: Attempting to start 'ora.ctssd' on 'rac1'
CRS-2676: Start of 'ora.ctssd' on 'rac1' succeeded
CRS-2676: Start of 'ora.cluster_interconnect.haip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.asm' on 'rac1'
CRS-2676: Start of 'ora.asm' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.storage' on 'rac1'
CRS-2676: Start of 'ora.storage' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.crf' on 'rac1'
CRS-2676: Start of 'ora.crf' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.crsd' on 'rac1'
CRS-2676: Start of 'ora.crsd' on 'rac1' succeeded
CRS-6017: Processing resource auto-start for servers: rac1
CRS-2672: Attempting to start 'ora.ons' on 'rac1'
CRS-2673: Attempting to stop 'ora.rac1.vip' on 'rac2'
CRS-2672: Attempting to start 'ora.ASMNET1LSNR_ASM.lsnr' on 'rac1'
CRS-2673: Attempting to stop 'ora.LISTENER_SCAN1.lsnr' on 'rac2'
CRS-2677: Stop of 'ora.LISTENER_SCAN1.lsnr' on 'rac2' succeeded
CRS-2673: Attempting to stop 'ora.scan1.vip' on 'rac2'
CRS-2677: Stop of 'ora.rac1.vip' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.rac1.vip' on 'rac1'
CRS-2677: Stop of 'ora.scan1.vip' on 'rac2' succeeded
CRS-2672: Attempting to start 'ora.scan1.vip' on 'rac1'
CRS-2676: Start of 'ora.rac1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.LISTENER.lsnr' on 'rac1'
CRS-2676: Start of 'ora.scan1.vip' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.LISTENER_SCAN1.lsnr' on 'rac1'
CRS-2676: Start of 'ora.ASMNET1LSNR_ASM.lsnr' on 'rac1' succeeded
CRS-2676: Start of 'ora.ons' on 'rac1' succeeded
CRS-2676: Start of 'ora.LISTENER.lsnr' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.asm' on 'rac1'
CRS-2676: Start of 'ora.LISTENER_SCAN1.lsnr' on 'rac1' succeeded
CRS-2676: Start of 'ora.asm' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.proxy_advm' on 'rac1'
CRS-2676: Start of 'ora.proxy_advm' on 'rac1' succeeded
CRS-2672: Attempting to start 'ora.ora12c.db' on 'rac1'
CRS-2676: Start of 'ora.ora12c.db' on 'rac1' succeeded
CRS-6016: Resource auto-start has completed for server rac1
CRS-6024: Completed start of Oracle Cluster Ready Services-managed resources
CRS-4123: Oracle High Availability Services has been started.

--集群状态
[root@rac1 ~]# crsctl stat res -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ASMNET1LSNR_ASM.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.DATA.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDB_NEW.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.SYSDG.dg
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.net1.network
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.ons
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
ora.proxy_advm
               ONLINE  ONLINE       rac1                     STABLE
               ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac1                     STABLE
ora.LISTENER_SCAN2.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.LISTENER_SCAN3.lsnr
      1        ONLINE  ONLINE       rac2                     STABLE
ora.MGMTLSNR
      1        ONLINE  ONLINE       rac2                     169.254.177.226 10.1
                                                             .1.104,STABLE
ora.asm
      1        ONLINE  ONLINE       rac1                     STABLE
      2        ONLINE  ONLINE       rac2                     STABLE
      3        OFFLINE OFFLINE                               STABLE
ora.cvu
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns
      1        ONLINE  ONLINE       rac2                     STABLE
ora.gns.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.mgmtdb
      1        ONLINE  ONLINE       rac2                     Open,STABLE
ora.oc4j
      1        ONLINE  ONLINE       rac2                     STABLE
ora.ora12c.db
      1        ONLINE  ONLINE       rac1                     Open,STABLE
      2        ONLINE  ONLINE       rac2                     Open,STABLE
ora.rac1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan1.vip
      1        ONLINE  ONLINE       rac1                     STABLE
ora.scan2.vip
      1        ONLINE  ONLINE       rac2                     STABLE
ora.scan3.vip
      1        ONLINE  ONLINE       rac2                     STABLE
--------------------------------------------------------------------------------

--集群角色
[root@rac1 ~]# crsctl get node role config
Node 'rac1' configured role is 'hub'
[root@rac2 ~]# crsctl get node role config
Node 'rac2' configured role is 'hub'

这里实现了ORACLE 12C RAC的leaf和hub 角色相互转换,在转换的过程中需要转移确认集群和ASM均为flex mode,如果参考相关文档完成转换


--------------------------------------ORACLE-DBA----------------------------------------

最权威、专业的Oracle案例资源汇总之学习笔记:Oracle 12C RAC hub AND leaf 相互转换

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Oracle 12C新特性

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数据库12C RAC hub AND leaf 相互转换