Patent attributes
Migrating data from a first storage system to a second storage system includes transferring the data from the first storage system to a cloud storage, transferring the data from the cloud storage to the second storage system, quiescing the first storage system prior to transferring remaining data from the first storage system to the cloud storage, and transferring remaining data from the cloud storage to the second storage system to complete migration of the data. The cloud storage may be accessible only through a private network or via the World Wide Web. Quiescing the first storage system may include the first storage system rejecting write operations or may include one or more external systems coupled to the first storage system foregoing write operations. Snapshots may be performed at the first storage system in response to commands provided by a host coupled to the first storage system.
