1. A data storage method comprising: a CPU of a first computing node of a super computer issuing a data write request; evaluating an availability of local storage in the first computing node; evaluating an availability of local storage in at least one other computing node of a plurality of computing nodes configured as a computing group in which the first computing node is a member, including querying an input/output node for the computing group to obtain an identifier of the at least one other computing node in the same computing group with available local storage; evaluating storage policies in view of the evaluating the availability of local storage in the first computing node and the evaluating the availability of local storage in the at least one other computing node in the computing group; writing data to local storage of at least one of the other computing nodes in the computing group according to the storage policies and the availability of local storage both in the first computing node and in other computing nodes, including writing data from the first computing node to the local storage of the at least one other computing node through a burst buffer fabric such that a CPU in the at least one other computing node is not interrupted, wherein the burst buffer fabric conforms to a storage device access standard.