VIRTUAL COMPUTER SYSTEM AND DATA TRANSFER CONTROL METHOD FOR VIRTUAL COMPUTER SYSTEM

WIPO Patent Application WO/2014/118969

A1

The present invention is a method which controls data transfer by a virtual computer system which is provided with a computer that is provided with a processor and memory and a virtualization unit which virtualizes a resource of the computer and assigns the same to a plurality of virtual computers, wherein: the computer has an adapter which is connected to storage devices; the adapter transmits data to and receives data from the storage devices, and measures the transfer amount of data that has been transmitted and received, and the number of I/O accesses, for each virtual computer; the virtualization unit, on the basis of the transfer amount of the data, and the number of I/O accesses, acquired from the adapter, computes an upper bound for the data transfer amount and an upper bound for the number of I/O accesses for each virtual computer and reports the same to the virtual computers; and the virtual computers retain the data to transfer to and to receive from the storage devices in a queue, and the virtual computers control data to output from the queue so as not to exceed the upper bound of the data transfer amount or the upper bound of the number of I/O accesses.

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YAMADA YOSUKE (JP)
KIYOTA YUUSAKU (JP)
IBA TOORU (JP)

PCT/JP2013/052377

August 07, 2014

February 01, 2013

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HITACHI LTD (JP)

G06F3/06; G06F13/10; G06F9/46

JP2008186211A	2008-08-14
JP2012133630A	2012-07-12
JP2012123556A	2012-06-28

FUJII, MASAHIRO (JP)
Fujii Masahiro (JP)

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