Abstract: Implementations described and claimed herein provide systems and methods for resumable replication. In one implementation, an interruption in a transfer between a source and a target is identified. The transfer includes a send stream generated by the source and configured for receipt by the target. The send stream includes one or more snapshots of the source. A receive checkpoint generated by the target is received at the source. The receive checkpoint indicates data successfully received into the target during the transfer prior to the interruption. The transfer is resumed based on the received checkpoint. The resumed transfer skips any of the one or more snapshots and all data in a resumable snapshot already existing on the target. A complete transfer from the source to the target is verified using a chain of custody.

Abstract: Implementations described and claimed herein provide systems and methods for resumable replication. In one implementation, an interruption in a transfer between a source and a target is identified. The transfer includes a send stream generated by the source and configured for receipt by the target. The send stream includes one or more snapshots of the source. A receive checkpoint generated by the target is received at the source. The receive checkpoint indicates data successfully received into the target during the transfer prior to the interruption. The transfer is resumed based on the received checkpoint. The resumed transfer skips any of the one or more snapshots and all data in a resumable snapshot already existing on the target. A complete transfer from the source to the target is verified using a chain of custody.

Abstract: A dynamic session redirector provides the ability to receive requests for network accessible storage resources and redirect them to the appropriate resources as needed while providing a single system image to the system requesting access to the resources. The redirector provides an ability to reconfigure the network storage resources without altering the system image presented by the redirector to the clients on the network. This may be used to provide for dynamic reallocation of the resources in order to improve efficiency and reliability of the storage system, as well to provide support for a wide variety of protocols to be redirected, including stateful protocols.

Abstract: A dynamic session redirector provides the ability to receive requests for network accessible storage resources and redirect them to the appropriate resources as needed while providing a single system image to the system requesting access to the resources. The redirector provides an ability to reconfigure the network storage resources in order to balance the load among the servers. By altering the association between individual storage resources and the servers responsible for them on the storage network, a more efficient and reliable system for access to the data may be provided.