Transferring a writable data set to a cloud service that is separate from the writable data set and terminate a snapshot after transfer

A non-transitory computer readable medium containing software that transfers data from a storage device to cloud service, the software comprising:

• executable code that initiates a snapshot of the data at the storage device;
• executable code that maintains an initial version of each block of the data of the storage device corresponding to each block of the data prior to initiating the snapshot;
• executable code that accesses each initial version of each block of the data corresponding to the snapshot to transfer each initial version of each block to the cloud service that is separate from the storage device;
• and
• executable code that terminates the snapshot at the storage device after all of the blocks have been transferred from the storage device to the cloud service, wherein writes to the initial version of the data are prevented prior to terminating the snapshot at the storage device and wherein at least some blocks of the storage device that are modified after initiating the snapshot are copied from the storage device to a storage pool prior to modification.