Abstract: The present disclosure provides a method for retransmitting at least one lost network packet based on a transport stream (TS) format and an user datagram protocol (UDP), including: receiving a plurality of media packets having the TS format by a terminal from a media server via the UDP, determining whether continuity counter (CC) fields of the media packets is continuous, transmitting a transmission request packet to a media retransmission server by the terminal via the UDP, wherein the media retransmission server is configured to analyze the retransmission request packet to obtain a least one lost media packet having the TS format, packaging the at least one lost media packet into a retransmission acknowledge packet by the media retransmission server, and transmitting the retransmission acknowledge packet from the media retransmission server to the terminal via the UDP.

Abstract: The present disclosure provides a management method and an apparatus for coexisting multi-storage mediums. The method includes: scanning a plurality of storage mediums to identify the storage medium operating in an online mode; configuring the storage medium operating in the online mode as a first storage medium; establishing a doubly linked list by a controller, wherein the doubly linked list records storage mediums operating in the online mode; determining whether the first storage medium is in a register table; turning on a switching mode of the first storage medium upon determining the first storage medium is in the register table; and retrieving a switching command via a storage layer, wherein the switching command is generated by the controller in response to user request.