VIRTUALIZING SWITCH AND COMPUTER SYSTEM
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United States of America Patent
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N/A
Issued Date -
Feb 4, 2010
app pub date -
Jul 30, 2009
filing date -
Jul 31, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A virtualizing switch includes a storage virtualizing section for making the host computer recognize storage areas prepared by combining storage areas of a physical storage devices as virtual storage devices, a data copying section for executing data copying between the virtual storage devices, a range locking section for dividing a storage area for storing data to be copied of a virtual storage device of a copy source into storage area parts having a previously set division size and inhibiting access to a divided storage area part, an instruction number counting section for counting the number of access instructions to the divided storage area part that is inhibited by the range locking section, and a divided capacity changing section for changing the division size based on the number of instructions counted by the instruction number counting section.
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