Change SQL Server Collation in a clustered environment

start /wait D:\Servers\setup.exe /qn VS=[VIRTUALSERVER] INSTANCENAME=[MSSQLSERVER] REINSTALL=SQL_Engine REBUILDDATABASE=1 ADMINPASSWORD=[CURRENT USERPASS] SAPWD=[sapassword] SQLCOLLATION=[NewCollation] SQLACCOUNT=[domain acct] SQLPASSWORD=[domainpass] AGTACCOUNT=[domainacct] AGTPASSWORD=[domainpss]

Make sure that ADMINPASSWORD is the current user's password and this user should have admin rights on all involved nodes.