Since we've for seen to work with several disks it's recommended to configure SQL default values. This values are used when creating databases (if it can't be done through the installation of the software itself).

• Launch "Microsoft SQL Server Management Studio"
• Connect to Database
• Right click on this database and select 'Properties'
• Select 'Database Settings'
• Change 'Database default locations' for 'data' and 'Log'.
  Mostly will the Data be located on the first disk in the group. For example E:\DBData.
  The Log location will be located on a second disk. For example F:\DBLog
  If the disk is not present, this means that you've forgotten to change the dependencies on the SQL Server. It must be depending on both disks!
• Repeat all these steps for each instance present on the cluster.