说明相关文章链接：Relink ASM单实例数据库详细步骤： http://blog.itpub.net/69992972/viewspace-2871957/
实验环境
搭建平台：VMware Workstation
OS：RHEL 7.6
Grid&DB：Oracle 12.2.0.1
Relink RAC集群步骤
1. 停止RAC集群 切换到root用户
$ su - # $GI_HOME/bin/crsctl stop crs ## 每个节点都要执行！！
注： （1）$GI_HOME/bin/crsctl stop crs 这条命令可以彻底停止RAC的所有服务，但只适用于本地节点，所以要停止整个RAC集群必须在每个节点执行！！ （2）$GI_HOME/bin/crsctl stop cluster -all 这条命令不能停止底层的高可用ohas进程
# $GI_HOME/bin/crsctl stop crs ## 在testrac01 节点执行后的输出 CRS-2791: Starting shutdown of Oracle High Availability Services-managed resources on 'testrac01' CRS-2673: Attempting to stop 'ora.crsd' on 'testrac01' CRS-2790: Starting shutdown of Cluster Ready Services-managed resources on server 'testrac01' CRS-2673: Attempting to stop 'ora.m2test.db' on 'testrac01' CRS-2673: Attempting to stop 'ora.chad' on 'testrac01' CRS-2677: Stop of 'ora.m2test.db' on 'testrac01' succeeded CRS-33673: Attempting to stop resource group 'ora.asmgroup' on server 'testrac01' CRS-2673: Attempting to stop 'ora.DATA.dg' on 'testrac01' CRS-2673: Attempting to stop 'ora.LISTENER.lsnr' on 'testrac01' CRS-2677: Stop of 'ora.LISTENER.lsnr' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.testrac01.vip' on 'testrac01' CRS-2677: Stop of 'ora.testrac01.vip' on 'testrac01' succeeded CRS-2677: Stop of 'ora.DATA.dg' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.asm' on 'testrac01' CRS-2677: Stop of 'ora.asm' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.ASMNET1LSNR_ASM.lsnr' on 'testrac01' CRS-2677: Stop of 'ora.chad' on 'testrac01' succeeded CRS-2677: Stop of 'ora.ASMNET1LSNR_ASM.lsnr' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.asmnet1.asmnetwork' on 'testrac01' CRS-2677: Stop of 'ora.asmnet1.asmnetwork' on 'testrac01' succeeded CRS-33677: Stop of resource group 'ora.asmgroup' on server 'testrac01' succeeded. CRS-2672: Attempting to start 'ora.testrac01.vip' on 'cehaovmsp1102' CRS-2676: Start of 'ora.testrac01.vip' on 'cehaovmsp1102' succeeded CRS-2673: Attempting to stop 'ora.ons' on 'testrac01' CRS-2677: Stop of 'ora.ons' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.net1.network' on 'testrac01' CRS-2677: Stop of 'ora.net1.network' on 'testrac01' succeeded CRS-2792: Shutdown of Cluster Ready Services-managed resources on 'testrac01' has completed CRS-2677: Stop of 'ora.crsd' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.asm' on 'testrac01' CRS-2673: Attempting to stop 'ora.crf' on 'testrac01' CRS-2673: Attempting to stop 'ora.drivers.acfs' on 'testrac01' CRS-2673: Attempting to stop 'ora.mdnsd' on 'testrac01' CRS-2677: Stop of 'ora.drivers.acfs' on 'testrac01' succeeded CRS-2677: Stop of 'ora.crf' on 'testrac01' succeeded CRS-2677: Stop of 'ora.mdnsd' on 'testrac01' succeeded CRS-2677: Stop of 'ora.asm' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.cluster_interconnect.haip' on 'testrac01' CRS-2677: Stop of 'ora.cluster_interconnect.haip' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.ctssd' on 'testrac01' CRS-2673: Attempting to stop 'ora.evmd' on 'testrac01' CRS-2677: Stop of 'ora.ctssd' on 'testrac01' succeeded CRS-2677: Stop of 'ora.evmd' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.cssd' on 'testrac01' CRS-2677: Stop of 'ora.cssd' on 'testrac01' succeeded CRS-2673: Attempting to stop 'ora.driver.afd' on 'testrac01' CRS-2673: Attempting to stop 'ora.gipcd' on 'testrac01' CRS-2673: Attempting to stop 'ora.gpnpd' on 'testrac01' CRS-2677: Stop of 'ora.driver.afd' on 'testrac01' succeeded CRS-2677: Stop of 'ora.gipcd' on 'testrac01' succeeded CRS-2677: Stop of 'ora.gpnpd' on 'testrac01' succeeded CRS-2793: Shutdown of Oracle High Availability Services-managed resources on 'testrac01' has completed CRS-4133: Oracle High Availability Services has been stopped.
2. 在 每个RAC节点执行unlock操作
$ su - # $GI_HOME/crs/install/rootcrs.sh -unlock ##每个节点都要执行！！
3. 在 每个RAC节点执行relink操作
# su - grid $ $GI_HOME/bin/relink all writing relink log to: /oracle/app/grid/product/12.2.0/grid/install/relink.log
4. 在 每个RAC节点执行lock操作
# $GI_HOME/rdbms/install/rootadd_rdbms.sh # $GI_HOME/crs/install/rootcrs.sh -lock
注：12.1.0.1版本需要使用rootcrs.sh -patch；11g版本使用perl rootcrs.pl -patch 5. 检查每个RAC节点是否启动在每个节点执行完roothas.sh后，每个的CRS服务都会启动， 保险起见用root或者grid用户检查一下，如果没有启动，需要用root用户手动启动（1）检查命令：
$GI_HOME/bin/crsctl status res -t
（2）启动CRS服务命令
$ su - # $GI_HOME/bin/crsctl start crs ##每个节点都要执行
