The following description about the specified creation source when applying for EVS in FusionCloud, which...

Support to quickly apply for cloud hard disks containing the same data by specifying a disk. When the source disk is a data disk.

You can apply for a data disk containing the same data; when the source disk is a system disk, you can apply for a data disk containing the same data data system disk.

Supports creating cloud disks from cloud disk snapshots, and the new cloud disk data will be the same as the disk snapshot data.

It is not supported to apply for a data disk using a data encryption image, or apply for a system disk using a system disk image.

Support the creation of cloud disks from the backup cloud disks, the new cloud disk data will be the same as the data in the disk backup state same.