Method, apparatus and program storage device for providing drive load balancing and resynchronization of a mirrored storage system
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United States of America Patent
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N/A
Issued Date -
Mar 22, 2007
app pub date -
Sep 19, 2005
filing date -
Sep 19, 2005
priority date (Note) -
Abandoned
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Abstract
A method, apparatus and program storage device for providing drive load balancing and resynchronization of a mirrored storage system. Data is pushed from a storage device at a source SAN device to a hot spare device of a destination SAN device, wherein the resynchronization rebuild process is incorporated with both the source SAN system and destination SAN system as RAID 0. In another embodiment, the resynchronization rebuild process is incorporated with just the destination SAN system as RAID 0. Nevertheless, RAID 10 performance is provided without the associated cost. A performance gain is provided by using RAID 0, the efficiency of drive space is increased, customer cost is minimized and the time to perform rebuild operations is decreased. Moreover, the present invention provides load balancing to storage devices in enclosures by balancing storage devices between multiple I/O channels.
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