This app is designed to help you determine the optimal parameters for creating ext3/ext4/xfs file systems. When you input information about your current or planned storage, we'll generate a command to create a file system on given RAID storage.
To use this app, pick or fill a proper option for the file system you are going to create, then click the Calculate button. A command will be shown on the upper right part of the page. Simply copy that generated command and execute it as the root user to create your file system.
If you're not sure about a field, hover your mouse pointer over the question mark (?) beside it to see a brief explanation, or you can scroll down to the bottom of the screen to read a summary of all options.