Can changing SYS password be complicated

Hi,
I have two node RAC with ASm and I am able to login to both the nodes without password and every is fine, If i change the password fo the SYS will there be any complications as the same password is used by the ASM instance.
Your suggestion will be highly appreciated!

Thanks for your response.
My scenario is like,
I want to use the database authentication, hence if I comment out "SQLNET.AUTHENTICATION_SERVICES" oracle forces me to enter the password for SYS, but some of the services go down due to comenting "SQLNET.AUTHENTICATION_SERVICES" in in sqlnet.ora, as we need this for BEQ protocol which is used to connect from database to ASM instance failing which we cannot startup the instances and CRS resource status will show UNKNOWN.
My question is if I change the sysdba password and force the oracle to ask for the password before login as sysdba(commenting the SQLNET.AUTHENTICATION_SERVICES in sqlnet.ora) will it create any type of complecation.
Pls suggest!

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