Move SharePoint 2010 Database Server

Hey Guys,

I am in process of moving our clustered SharePoint 2010 Database server (DB1) to new clustered environment (DB2). I know SharePoint Frontend servers FE1 and FE2 would like to keep connection to DB1, so I am planning for following changes.

Unfortunately our current setup is not using SQL alias so I would like to verify if these steps would work.

SQL Server:

• Create new SQL cluster with SQL instance name DB2.
• Move DB’s from DB1 to DB2. (De-attach and move)
• Add alias in SQL configuration manager (32 and 64bit) for DB1 -- > DB2. (as shown below)
• Restart SQL server

DNS Changes:

• Update DNS entry to point DB1 to DB2

SharePoint FE (FE1 and FE2): 

• C:\Windows\System32\cliconfg.exe
• c:\Windows\SysWOW64\cliconfg.exe

Add TCP/IP alias where server alias = DB and Server Name under Connection parameter = DB2

Thanks,