Raid LUN creation using proportional disk mapping
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United States of America Patent
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Feb 25, 2003
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N/A
app pub date -
Feb 2, 2000
filing date -
Feb 2, 2000
priority date (Note) -
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Abstract
A method and system for creating logical units (LUNs) in a RAID system by allocating proportional amounts of disk storage space to each LUN. Proportional allocation of disk space for different LUNs allows for the selective mapping of more data from the LUN to be mapped to some of the different disks to better optimize the I/O performance in a RAID system. The LUN is divided into a plurality segments or strips are allocated to predetermined disks in a predetermined proportional manner. A proportional create statement defines the proportional mapping and an intelligent RAID controller manages the proportional mapping of information.
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