Invention Grant
US07882386B1 System and method for recovering a logical volume during failover or reboot of a file server in a data storage environment
有权
在数据存储环境中的文件服务器故障切换或重启期间恢复逻辑卷的系统和方法
- Patent Title: System and method for recovering a logical volume during failover or reboot of a file server in a data storage environment
- Patent Title (中): 在数据存储环境中的文件服务器故障切换或重启期间恢复逻辑卷的系统和方法
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Application No.: US12052907Application Date: 2008-03-21
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Publication No.: US07882386B1Publication Date: 2011-02-01
- Inventor: Ajay S. Potnis , Jean-Pierre Bono , Sairam Veeraswamy , Rahul Bhagwat
- Applicant: Ajay S. Potnis , Jean-Pierre Bono , Sairam Veeraswamy , Rahul Bhagwat
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporaton
- Current Assignee: EMC Corporaton
- Current Assignee Address: US MA Hopkinton
- Agency: Krishnendu Kupta
- Agent Joseph D'Angelo
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
This invention is a system and a method for recovering and repairing a logical volume in a data storage environment using a new architecture. The method of recovering a logical volume enables mounting of a file system by instantiating only a single slice under the sparse volume and instantiating rest of the slices provisioned under the sparse volume in background by a asynchronous recovery process or on-demand by the clients of the file system issuing an I/O on the slice volume. The method of repairing a logical volume provides the ability to regenerate the metadata required to reconstruct the corrupted volume.
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