ORACLE 12C Flex ASM转换

ORACLE 12C一个很重要功能增强就是引入了FLEX  CLUSTER.不过在配置FLEX CLUSTER之前，需要有

FLEX ASM。  FLEX ASM可以在安装集群的时候设置，也可以在安装完成后手动转换.

例如有rac节点,rac1和rac2,以前该ASM是标准的clustre模式，现在需要转换到flex asm。

在引入flex asm之后，网络类型由原来的public和private,增加了到public,private,asm三种. asm network

用来请求远方asm instance的存储数据流.

[root@rac1 ~]# oifcfg getif

eth0  192.168.233.0  global  public

eth1  10.0.0.0  global  cluster_interconnect

设置eth1为asm network

[root@rac1 ~]# oifcfg getif

eth0  192.168.233.0  global  public

eth1  10.0.0.0  global  asm

使用x窗口,以grid用户执行asmca

[grid@rac1 ~]$ asmca

也可以通过

[grid@rac1 ~]$ asmca -slient -converttoflexasm -asmnetworks eth1/10.0.0.0 -asmlistenerport 1521

执行完成后，需要在所有的节点上再以root执行脚本converttoFlexASM.sh

[root@rac1 ~]# /u01/app/oracle/cfgtoollogs/asmca/scripts/converttoFlexASM.sh

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.lsnr' on 'rac1'

CRS-2673: Attempting to stop 'ora.tt.db' on 'rac1'

CRS-2673: Attempting to stop 'ora.LISTENER2.lsnr' on 'rac1'

CRS-2673: Attempting to stop 'ora.LISTENER_SCAN1_NET2.lsnr' on 'rac1'

CRS-2673: Attempting to stop 'ora.cvu' on 'rac1'

CRS-2677: Stop of 'ora.LISTENER2.lsnr' on 'rac1' succeeded

CRS-2673: Attempting to stop 'ora.rac1_2.vip' 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_NET2.lsnr' on 'rac1' succeeded

CRS-2673: Attempting to stop 'ora.scan1_net2.vip' on 'rac1'

CRS-2677: Stop of 'ora.cvu' on 'rac1' succeeded

CRS-2672: Attempting to start 'ora.cvu' on 'rac2'

...........................................

[root@rac1 scripts]# scp converttoFlexASM.sh rac2:/root   --另一个节点不会有该脚本，需要手动拷过去.

确认flex asm已经转换完成

[root@rac1 cfgtoollogs]# asmcmd showclustermode

ASM cluster : Flex mode enabled

现在rac2节点已经是flex asm的hub节点了

[root@rac2 cfgtoollogs]# srvctl status asm -detail

ASM is running on rac2

ASM is enabled.