Hello,
From a Mac
Join the Wi-Fi network your Time Capsule is connected to, or connect an Ethernet cable between your Mac and your AirPort Time Capsule.
Open AirPort Utility.
Select your AirPort Time Capsule in the AirPort Utility window.
Click the Edit button that appears.
In the Edit window, click the Disks tab.
Thank You.
Apple Router Setup
Apple Time Capsule Setup
Time Capsule Setup