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US 2014/0208051 A1Published application
Method and system for cascaded flashcopy zoning and algorithm and/or computer program code and method implementing the same
AssigneeInternational Business Machines Corporation
InventorsJohn P. AGOMBAR, Christopher B.E. BEEKEN, Stephanie MACHLEIDT
Life of this patent
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Abstract
A method for storage volumes in a cascade of storage volumes including starting a first data map relating a first storage volume to a second storage volume while a second data map relating the first storage volume and a third storage volume is active. Starting the first data map uses a zone map that relates the first storage volume to a zone within the cascade of storage volumes.
Claims20
A system comprising:
- a processor, a computer readable memory and a computer readable storage device;
- a first storage volume having a first data map that relates the first storage volume to a second storage volume in a cascade of storage volumes;
- and
- program instructions that start a second data map relating the first storage volume to a third storage volume while the first data map is active,
- wherein:
- the program instructions use a zone map relating the first storage volume to a zone in the cascade of storage volumes, and
- the program instructions are stored on the computer readable storage device for execution by the processor via the computer readable memory.
4 more elements
A method for a plurality of storage volumes in a cascade of storage volumes comprising:
- starting, by a processor, a first data map relating a first storage volume to a second storage volume while a second data map relating the first storage volume and a third storage volume is active,
- wherein the processor starts the first data map using a zone map that relates the first storage volume to a zone within the cascade of storage volumes.
Dependencies are inferred from the claim text.