VIRTUAL STORAGE METHOD AND DEVICE
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United States of America Patent
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app pub date -
Jun 29, 2011
filing date -
Dec 29, 2008
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Abandoned
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Abstract
A virtual storage method and a device are disclosed. The virtual storage method includes: obtaining a volume management mode of a Logical Unit Number (LUN) from a storage array and recording the volume management mode into stitch data; and constructing a virtual LUN according to the LUN and the stitch data, and mapping the virtual LUN to a host to enable read/write access; and modifying a destination address of an Input/Output (I/O) data packet delivered by the host according to the stitch data after receiving the I/O data packet, delivering the I/O data packet to the virtual LUN, and delivering the I/O data packet which has been delivered to the virtual LUN to the storage array according to the stitch data, where an address of the storage array to which the I/O data packet is delivered is the same as the destination address of the I/O data packet before the destination address of the I/O data packet is modified.
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