Patent ID: 8924622
Filing Date: 2014-12-30
Classification: G06F

Abstract:
1. A method for managing data, by a processor device, in a computing storage environment including a source storage pool storing a first last replicated snapshot (LRS) of the data, a target storage pool coupled to the source storage pool and storing the first LRS, a first extender storage pool system coupled to and configured for expanding an available storage capacity for the target storage pool, and a second extender storage pool system coupled to and configured for expanding an available storage capacity for the source storage pool, the method comprising: creating a first most recent snapshot (MRS) of the data stored in the source storage pool; comparing the first MRS and the first LRS in the source storage pool to determine if there is new data in the first MRS that is not in the first LRS; if the first MRS comprises new data, mirroring the first MRS to the target storage pool; renaming the first MRS on the target storage pool as a second LRS of the data; synchronously storing, on the first extender storage pool system, the second LRS; renaming the first MRS as the second LRS on the source storage pool; and mirroring, on the second extender storage pool system, the second LRS.