Invention Grant
- Patent Title: Fault handling systems and methods
- Patent Title (中): 故障处理系统和方法
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Application No.: US12885418Application Date: 2010-09-17
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Publication No.: US08533539B2Publication Date: 2013-09-10
- Inventor: Shailesh Marathe , Rajesh Chepuri
- Applicant: Shailesh Marathe , Rajesh Chepuri
- Applicant Address: US CA Mountain View
- Assignee: Symantec Corporation
- Current Assignee: Symantec Corporation
- Current Assignee Address: US CA Mountain View
- Agency: Wilmer Cutler Pickering Hale and Dorr LLP
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
Systems and methods for fault handling are presented. In one embodiment, a fault handling method includes: performing an error type detection process including determining if an error is a media error or a connectivity error; performing a detachment determination process to establish an appropriate detachment scenario, wherein the appropriate detachment scenario includes not detaching any mirrors if the connectivity error involves all mirrors; and returning an application write with a failure. In one embodiment, the detachment determination process detaches a mirror in accordance with results of a read-write-back process. In one exemplary implementation, the detachment determination process includes a connectivity status inquiry and mirrors are detached in accordance with results of the connectivity status inquiry. In one exemplary implementation, the connectivity status inquiry includes a SCSI connectivity inquiry. In one embodiment, consistency and synchronization is maintained between the mirrors by utilizing a read-write-back operation.
Public/Granted literature
- US20120072766A1 FAULT HANDLING SYSTEMS AND METHODS Public/Granted day:2012-03-22
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