Invention Application
US20050022051A1 Disk mirror architecture for database appliance with locally balanced regeneration
失效
具有局部平衡再生的数据库设备的磁盘镜像架构
- Patent Title: Disk mirror architecture for database appliance with locally balanced regeneration
- Patent Title (中): 具有局部平衡再生的数据库设备的磁盘镜像架构
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Application No.: US10885519Application Date: 2004-07-06
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Publication No.: US20050022051A1Publication Date: 2005-01-27
- Inventor: Barry Zane , Foster Hinshaw , Philip MacDonald , John Metzger
- Applicant: Barry Zane , Foster Hinshaw , Philip MacDonald , John Metzger
- Applicant Address: US MA Framingham
- Assignee: Netezza Corporation
- Current Assignee: Netezza Corporation
- Current Assignee Address: US MA Framingham
- Main IPC: G06F11/20
- IPC: G06F11/20 ; G06F11/00
Abstract:
A disk is segmented into a first data segment and a secondary data segment. The secondary data segment stores a logical mirror of the first data segment of another disk. Upon detecting a failure, the logical mirror of data stored in the first data segment of the failed disk is accessible from the secondary data segment of a non-failed disk. The first data segment can be rebuilt quickly on another disk from the logical mirror stored in the secondary data segment. During regenerating, accesses to the first data segment on the disk containing the logical mirror are handled by its own logical mirror, which is not involved in the regenerating process.
Public/Granted literature
- US07337351B2 Disk mirror architecture for database appliance with locally balanced regeneration Public/Granted day:2008-02-26
Information query
