How to Back Up Your iPad to iCloud
You used to be able to back up your iPad content only via iTunes, but with Apple iCloud, you can back up via a Wi-Fi network to your iCloud storage.
You get 5GB of storage for free (not including iTunes-bought music, video, apps, and electronic books or music you’ve copied to the cloud via the paid subscription service, iTunes Match), or you can pay for increased levels of storage (10GB for $20 a year, 20GB for $40 a year, or 50GB for $100 a year).
To perform a backup to iCloud, first set up an iCloud account and then tap Settings on the Home screen.
Tap iCloud and then set the Backup switch to On.
In the pane that appears, tap the iCloud Backup On/Off switch to on to enable automatic backups.
To perform a manual backup, tap Back Up Now. A progress bar shows how your backup is moving along.