Invention Grant
US07885923B1 On demand consistency checkpoints for temporal volumes within consistency interval marker based replication
有权
基于一致性间隔标记的复制中的时间体积的按需一致性检查点
- Patent Title: On demand consistency checkpoints for temporal volumes within consistency interval marker based replication
- Patent Title (中): 基于一致性间隔标记的复制中的时间体积的按需一致性检查点
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Application No.: US11762608Application Date: 2007-06-13
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Publication No.: US07885923B1Publication Date: 2011-02-08
- Inventor: Deepak Tawri , Ronald S. Karr
- Applicant: Deepak Tawri , Ronald S. Karr
- Applicant Address: US CA Mountain View
- Assignee: Symantec Operating Corporation
- Current Assignee: Symantec Operating Corporation
- Current Assignee Address: US CA Mountain View
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: G06F12/16
- IPC: G06F12/16

Abstract:
In distributed storage environments, nodes may send replicated writes for temporal volumes and may be configured to request on-demand consistency intervals in order to allow multiple nodes to transition between timestamps for temporal data in a uniform and coordinated manner. In response to a request from a node for a consistency interval transition, a consistency interval coordinator may end a current consistency interval and start another and may provide coordination to various nodes to enable the nodes to transition from one timestamp to another, and thus from one temporal version to another, while prevent data corruption or inconsistency between the temporal versions. Additionally, periodic consistency intervals may be utilized to provide consistent and coordinated transitions between temporal timestamps. In some embodiments, replicated writes including temporal timestamp information may be stored persistent spillover logs allowing offline updating and versioning of data to temporal volumes.
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