Invention Grant
- Patent Title: Distributed hot-spare storage in a storage cluster
- Patent Title (中): 分布式热备份存储在存储集群中
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Application No.: US13220305Application Date: 2011-08-29
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Publication No.: US08479037B1Publication Date: 2013-07-02
- Inventor: Paresh Chatterjee , Ajit Narayanan , Anandh Mahalingam , Srikumar Subramanian
- Applicant: Paresh Chatterjee , Ajit Narayanan , Anandh Mahalingam , Srikumar Subramanian
- Applicant Address: US GA Norcross
- Assignee: American Megatrends, Inc.
- Current Assignee: American Megatrends, Inc.
- Current Assignee Address: US GA Norcross
- Agency: Meunier Carlin & Curfman, LLC
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A method, system, apparatus, and computer-readable medium are described for providing distributed hot-spare storage in a redundant storage cluster. According to one method, a portion of the unutilized space on the storage cluster is utilized as a distributed hot-spare storage node. Through this mechanism, a redundant storage cluster with N storage nodes may be contracted to a redundant array with N−1 nodes. Thin provisioning and intelligent data placement may also be utilized to implement the distributed hot-spare storage node. Through repeated application of such methods and systems, the failure of any storage node or the sequential failure of multiple storage nodes within a redundant storage cluster results in the recreation of the cluster as a redundant storage array with one fewer node, but with the same redundancy.
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