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US 7,613,947 B1Granted
System and method for storage takeover
AssigneeNetApp, Inc.
InventorsSusan M. Coatney, Kayuri Patel, Stephen H. Strange, Steven S. Watanabe
Life of this patent
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AssigneeNetApp, Inc.
InventorsSusan M. Coatney, Kayuri Patel, Stephen H. Strange, Steven S. Watanabe
Estimating the term…
A takeover system and method for high availability in the face of component failures for a multiple-node storage system cluster is provided. When a takeover is triggered either through a loss of cluster heartbeat, or through a user-initiated command, the system of the present invention is configured such that one or more surviving nodes asserts ownership on one or more of the failed node's disks such that all of the disks become locally owned by one of the surviving nodes. An assimilation of the disks into one or more aggregates is performed, and any duplicated file system identification numbers are corrected to avoid errors. As the disks thus appear to be locally owned by the surviving nodes, one or more newly assimilated aggregates are thus exposed to any N-module that interfaces with the surviving nodes.
A method for performing a takeover procedure in a storage system environment, the method comprising the steps of:
A system for a clustered storage environment takeover, the system comprising:
A computer readable medium for providing a takeover of data containers in a clustered storage environment, comprising program instructions for performing the steps of:
Dependencies are inferred from the claim text.