This backup scheme is only available when you have an Initial Seeding license and selected the Online Backup Storage as the backup destination.
The Initial Seeding service might be unavailable in your region. To find more information, click here: http://kb.acronis.com/content/15118.
Initial seeding enables you to transfer the first backup, which is full and usually the largest, to the online storage on a hard drive instead of over the Internet. Subsequent backups, which are all incremental and thus usually much smaller, can be transferred over the Internet after the full backup has arrived in the online storage.
If you back up 10 GB of data or more, initial seeding ensures faster delivery of the backed-up data and lower traffic costs.
Please refer to the "Initial Seeding FAQ" section for more details.