US Patent 11032372 Efficient data streaming using a global index

A system for data access comprises a server storage system, a global index, an interface, and a processor. The server storage system stores data associated with vehicle event recorders. The global index includes indications of server-stored data stored on the server storage system. The interface is configured to receive an access indication to access desired data. The processor is configured to determine a server stored portion of the desired data associated with the vehicle event recorder that has been previously stored on the server storage system using information stored in the global index and retrieve the server stored portion of the data from the server storage system; and determine a non-server stored portion of the desired data associated with the vehicle event recorder that has not been previously stored on the server storage system and indicate to retrieve the non-server stored portion of the data from the vehicle event recorder.