Patent ID: 8949183
Filing Date: 2015-02-03
Classification: G06F

Abstract:
1. A method comprising: writing data from at least one write operation and storing associated write data in a first data site that is in communication with a first data storage system, for each write, identifying file system data and metadata changes; tracking and recording file system data and metadata consisting of the identified changes; asynchronously synchronizing the tracked data and metadata changes to a second data site with a second data storage, the second data site being in communication with the first data site, wherein the second data site is a shared pool of resources separate from the first data site; creating a first consistency point in the first data storage, the first consistency point representing file system data and metadata at a first point-in-time, including quiescing the file system and suspending processing of data and metadata in the message queue local to the first data site prior to creation of the first consistency point; and creating a second consistency point in the second data storage, wherein the second consistency point represents the same file data and metadata as the first consistency point.