19c的rac库，两边补丁不一致导致在添加磁盘组空间的时候报如下错

节点1查看补丁

节点2查看补丁

可以看出，节点1多了一个31219897的补丁，在mos上一查，这是一个ojvm的补丁，也可以通过opatch lsinv来查看详细

处理方式：将节点1上的这个补丁回退，根据此ojvm的补丁回退规则进行回退

将u01进行备份，先清理trc等文件，停掉1节点的集群和库进行备份

#find /u01/app/grid/diag/asm/+asm/+ASM1/trace -name "*.trc" -mtime +10 -exec rm {} \;

# tar cvpzf /root/u01bak.tar.gz /u01

1） $opatch rollback -id 31219897

上面可能会遇到权限问题，改文件权限没用，直接修改目录权限

2 ）# $GRID_HOME/crs/install/rootcrs.sh -postpatch

3 ）#启动节点1的集群和数据库

4 ）再次进行添加磁盘组，成功

执行rootcrs.sh -postpatch最后报错：

2021/03/15 18:14:55 CLSRSC-180: An error occurred while executing the command '/u01/app/19.0.0/grid/bin/mgmtca applysql'

Died at /u01/app/19.0.0/grid/crs/install/crspatch.pm line 1845.

The command '/u01/app/19.0.0/grid/perl/bin/perl -I/u01/app/19.0.0/grid/perl/lib -I/u01/app/19.0.0/grid/crs/install -I/u01/app/19.0.0/grid/xag /u01/app/19.0.0/grid/crs/install/rootcrs.pl -postpatch' execution failed

通过观察此脚本运行日志，正常，可不用理会。

这里贴出mos的解决方法：

1.  Execute below steps as root
     # sudo -s
     # $GRID_HOME/crs/install/rootcrs.sh -prepatch
2.  Execute the below steps to remove from kfod
     # sudo su - grid
     # $GRID_HOME/bin/patchgen commit -rb 29757256
3.  Execute below steps as root
     # $GRID_HOME/crs/install/rootcrs.sh -postpatch
4.  Then collect below command outputs, again

     # $GRID_HOME/bin/kfod op=patches
     # $GRID_HOME/binkfod op=PATCHLVL

     # opatch lsinv -oh <GRID HOME>

     # crsctl query crs softwarepatch
     # crsctl query crs activeversion -f

5.  Also check

     # sudo su - grid
     ASMCMD> showclusterstate

     # sqlplus / as sysasm

    SQL> select sys_context('SYS_CLUSTER_PROPERTIES', 'CLUSTER_STATE') from dual;
    SQL> select sys_context('SYS_CLUSTER_PROPERTIES', 'CURRENT_PATCHLVL') from dual;

Note: We have to execute the command on the node where we have that patch present in kfod.

After completing this action plan, we can re-initiated the scaling (which completed successfully for the customer).

Patch 31219897 - Oracle JavaVM Component Release Update 19.8.0.0.200714

参考mos ID 2681040.1