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US 8,150,936 B2Granted
Methods and apparatus to manage shadow copy providers
AssigneeEMC Corporation
InventorsWei Liu, Sanjay Jain
Life of this patent
Estimating the term…
Abstract
A data storage management system includes a virtual provider for interacting with a coordinator to receive shadow copy requests from a requestor and for interfacing with a plurality of providers that support various logical units on which data volumes can be stored. The virtual provider appears to the coordinator as a provider and can generate a shadow copy of a first one of the data volumes that spans multiple ones of the logical units, which are supported by different ones of the plurality of providers.
Claims20
A method, comprising:
- receiving a request from a requestor coupled to a coordinator to create a shadow copy of a data volume on first and second logical units, where the first logical unit is supported by a first provider and the second logical unit is supported by a second provider;
- and
- creating the shadow copy by a virtual provider coupled to the first and second providers and to the coordinator, wherein the virtual provider appears as a provider to the coordinator.
A data storage system, comprising:
- a memory having stored instructions to provide:
- a virtual provider for interacting with a coordinator to receive shadow copy requests from a requestor and for interfacing with a plurality of providers that support various logical units on which data volumes can be stored,
- wherein the virtual provider appears to the coordinator as a provider and can generate a shadow copy of a first one of the data volumes that spans first and second logical units, the first logical unit being supported by a first provider and the second logical unit being supported by a second provider.
An article, comprising:
- a storage medium having stored instructions that when executed by a machine result in the following:
- receiving a request from a requestor coupled to a coordinator to create a shadow copy of a data volume on first and second logical units, where the first logical unit is supported by a first provider and the second logical unit is supported by a second provider;
- and
- creating the shadow copy by a virtual provider coupled to the first and second providers and to the coordinator, wherein the virtual provider appears as a provider to the coordinator.
1 more element
Dependencies are inferred from the claim text.