Abstract: Provided are a method, system, deployment and program for managing data transfer in consistency group formation. In one embodiment, a transfer time for a data structure is selected as a function of at least one determined backlog. Upon expiration of the selected transfer time, the mode of operation may be switched. By dynamically selecting a transfer time, backlogs may be reduced to increase the likelihood of successful creation of a consistency group. Other embodiments are described and claimed.

Abstract: An apparatus, system and method of concurrent high-performance transport of variable-length messages are provided. The invention overcomes the problem of transporting a message comprising more bits than the maximum allowable group transmission on a network, by fragmenting the message into a plurality of data packets and transmitting the data packets concurrently. In addition, the present invention overcomes the problem of inefficient storage space allocation for reconstruction of the message from the data packets by sending the size of the message with each data packet.