Patent ID: 8108580
Filing Date: 2012-01-31
Classification: G06F,H04L

Abstract:
1. A method for routing an Input/Output operation (I/O) to support low latency synchronous replication among heterogeneous storage nodes, the method comprising: receiving the I/O from a source; routing, within a primary storage node, the I/O to a first data volume manager for local storage; routing, within the primary storage node, the I/O to a replicating module; routing, within a secondary storage node, the I/O to a journaling module; and routing, within the secondary storage node, the I/O from the journaling module to a second data volume manager for local storage, wherein the replicating module is operable to serialize a plurality of I/Os into a sequential journal structure prior to transmitting the sequential journal structure to the secondary storage node.