Independent disks are stand-alone virtual disks that you create in organization VDCs. Administrators and users who have adequate rights can create, remove, and update independent disks, and connect them to virtual machines.
When you create an independent disk, it is associated with an organization VDC but not with a virtual machine. After the disk has been created in a VDC, the disk owner or an administrator can attach it to any virtual machine deployed in that VDC, detach it from a virtual machine, and remove it from the VDC.