File mode RAID subsystem
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United States of America Patent
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Aug 24, 2004
Grant Date -
Jun 12, 2003
app pub date -
Dec 6, 2001
filing date -
Dec 6, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and system enables data redundancy across servers, networks, and controllers by using standard redundant files as underlying storage for RAID subsystem configurations. A redundant array of independent disk (RAID) subsystem includes a front-end interface configured to process non-redundant requests received from a primary file system communicating with an application program. A back-end interface of the RAID subsystem is configured to process redundant requests corresponding to the non-redundant requests. The redundant requests to be issued to a secondary file system communicates with a block mode device including multiple physical storage devices.
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