I was try to re-configuring a cluster in the Cloud Control and in one of the steps is to configure access to the ASM part.

For This part is used by the asmsnmp user, which is the one that must be configured. I did not know the password of this user.

So I need to change it with new one.

To make this, We have two options. Those option can be use Oracle 12c to 20c.

First one is connecting to the asm instance (as sysasm) and running an alter user command

$ sqlplus / as sysasm
alter user asmsnmp identified by xxxxxxx;

Second option is asmcmd command with using orapwusr command

ASMCMD> orapwusr –modify asmsnmp
Enter password: XXXX
Thats it.